Reading Comprehension: Detail and Inference

215 soru

Soru 1Soru

Read the following sentence regarding historical forest ecology:

"While early twentieth-century silviculturists asserted that the rapid decline of old-growth oak stands in the Baltic basin was driven primarily by overharvesting for naval shipbuilding, recent dendrochronological analysis reveals that severe decadal drought cycles in the late seventeenth century had already compromised root systems, rendering these stands uniquely susceptible to fungal pathogens prior to the onset of intensive timber extraction."

Which of the following inferences regarding the decline of Baltic oak stands is most strongly supported by the statement above?

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Cevap: The vulnerability of Baltic oak stands to fungal pathogens was heightened by environmental stress experienced prior to the expansion of intensive timber harvesting.

Cevap

The vulnerability of Baltic oak stands to fungal pathogens was heightened by environmental stress experienced prior to the expansion of intensive timber harvesting.
The sentence specifies that drought cycles in the late seventeenth century compromised root systems and rendered oak stands uniquely susceptible to fungal pathogens prior to the onset of intensive timber extraction. This directly supports the conclusion that environmental stress occurring before expanded harvesting heightened the trees' vulnerability to pathogens.

Adım Adım Çözüm

1
Analyze the logical structure of the target sentence.
The sentence contrasts an older view (silviculturists claiming shipbuilding overharvesting was the main cause) with recent dendrochronological evidence.
Identifying the main clause clarifies what the author actually asserts as factual.
2
Examine the specific temporal and causal sequence presented in the evidence.
Late 17th-century drought cycles -> compromised root systems -> made trees susceptible to pathogens -> occurred prior to intensive timber extraction.
Evaluating pre-existing conditions confirms how drought stress preceded and enabled fungal vulnerability.
3
Match the sequence to the correct inference.
The statement directly supports that pre-harvesting environmental stress (drought) increased susceptibility (vulnerability) to pathogens.
A valid GMAT single-sentence inference must rely strictly on stated facts without external assumptions.

Anahtar Kavram

Single-Sentence Logical Inference
Soru 2Soru

Passage:
In the early twentieth century, large manufacturing enterprises faced unprecedented operational friction under the traditional unitary organizational structure (U-form), which centralized functional departments such as sales, production, and purchasing under a single executive hierarchy. As product lines diversified, senior executives became overwhelmed by daily operational logistics, diminishing their capacity for strategic capital allocation. To resolve this bottleneck, corporate architects introduced the multidivisional structure (M-form), partitioning the enterprise into semi-autonomous operating divisions organized by product or region, each governed by its own general manager. Under the M-form, divisional managers retained sole authority over immediate operational tactics and market adaptations, freeing top executives to focus exclusively on long-term strategy and cross-divisional capital distribution. Crucially, centralized executive control was maintained through rigorous financial auditing mechanisms; top management evaluated divisional performance against standard return-on-investment metrics, reallocating capital away from underperforming units toward high-yield divisions. Consequently, while divisional managers enjoyed operational autonomy, their strategic survival depended directly upon meeting centralized financial benchmarks set by executive management.

Based on the passage above, evaluate whether the following statement is True or False: Under the multidivisional structure (M-form), senior executives relinquished direct operational oversight of product divisions while using standardized financial metrics to retain strategic control over corporate capital deployment.

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Cevap: True

Cevap

True
The statement correctly combines two key facts from separate parts of the passage: the delegation of immediate operational tactical authority to divisional managers and the retention of capital reallocation power by top executives through return-on-investment metrics.

Adım Adım Çözüm

1
Analyze the passage for evidence regarding operational oversight under the M-form structure.
The fourth sentence states that 'divisional managers retained sole authority over immediate operational tactics,' showing that top executives surrendered daily operational oversight.
Evaluating the first premise of the statement.
2
Analyze the passage for evidence regarding capital allocation and financial metrics.
The fifth sentence notes that top management 'evaluated divisional performance against standard return-on-investment metrics, reallocating capital away from underperforming units,' confirming centralized strategic control via financial metrics.
Evaluating the second premise of the statement.
3
Synthesize the findings from both sentences to evaluate the overall statement.
Combining both points confirms that executives relinquished operational oversight while maintaining strategic capital control through performance benchmarks.
Verifying multi-sentence synthesis for true/false statement evaluation.

Anahtar Kavram

Synthesizing information across non-contiguous sentences to establish logical coherence between delegated operational authority and centralized strategic financial control.
Soru 3Soru

Passage:
In late nineteenth-century municipal public health governance, European cities increasingly shifted water supply systems from private concessionaires to municipal ownership. Historical analysis often attributes this transition exclusively to growing epidemiological awareness regarding waterborne pathogens, such as cholera and typhoid. However, fiscal records indicate that private water providers frequently faced insurmountable capital constraints when required to extend filtration infrastructure into low-density urban peripheries, where prospective consumer revenues could not offset fixed distribution costs. Concurrently, municipal authorities gained access to low-interest municipal bond markets that were legally inaccessible to private entities. Consequently, local governments were able to finance capital-intensive filtration facilities while maintaining uniform user tariffs across diverse residential districts. Nevertheless, in municipalities where private operators had secured long-term contracts with guaranteed rate returns, municipalization was routinely delayed by decades, regardless of the local incidence of waterborne diseases. Thus, while public health concerns provided the ideological justification for municipal takeover, the timing and execution of this administrative shift were primarily determined by municipal debt access and existing contractual guarantees.

Statement: Based on the passage, a European municipality experiencing a high incidence of waterborne disease and possessing access to low-interest municipal bond markets would still experience significant delays in transitioning to municipal water ownership if private concessionaires held long-term contracts with guaranteed rate returns.

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Cevap: True

Cevap

The statement is TRUE based on synthesizing details across the passage regarding municipal bond access, disease incidence, and private contractual guarantees.
The statement is correct because combining the passage's discussion of municipal bond access with its later qualifier regarding private contracts demonstrates that contractual guarantees delayed municipalization by decades despite high disease prevalence or favorable borrowing access.

Adım Adım Çözüm

1
Identify the relevant premises regarding public health, bond markets, and contractual terms in the passage.
The passage mentions that municipal bond markets provided financing capabilities, while public health concerns served as ideological motivation. However, long-term contracts with guaranteed returns created structural delays.
Synthesizing information across non-contiguous sentences is necessary to evaluate the joint effect of these three factors.
2
Analyze how contractual guarantees interact with epidemiological conditions and bond market access.
The passage specifies that where long-term contracts with guaranteed rate returns existed, municipalization was 'routinely delayed by decades, regardless of the local incidence of waterborne diseases.'
This demonstrates that existing contractual guarantees functioned as a bottleneck that superseded disease severity and financing availability.
3
Compare the synthesized passage findings against the statement provided.
The statement accurately reflects that high disease incidence and bond market access would not prevent multi-decade delays if guaranteed long-term private contracts were present.
The conclusion directly aligns with the passage's synthesis.

Anahtar Kavram

Multi-Sentence Synthesis Inferences
Soru 4Soru

Consider the following excerpt from an economic history of nineteenth-century Ottoman municipal finance:

"While nineteenth-century Ottoman fiscal reformers routinely blamed the persistent deficits of provincial treasuries on the administrative costs of tax farming (iltizam), Reşid Pasha’s 1845 financial audit revealed that provincial revenue shortfalls occurred primarily because local merchants systematically underreported agricultural yields prior to tax assessment, regardless of whether tax collection was managed directly by state bureaucrats or auctioned to private tax farmers."

Statement: Based on the excerpt, replacing private tax farmers with direct state administration would not, on its own, eliminate the primary factor driving provincial treasury deficits.

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Cevap: True

Cevap

True. The target sentence establishes that merchant yield underreporting was the main driver of treasury shortfalls and occurred under both direct state administration and tax farming; thus, replacing tax farmers with state bureaucrats would not eliminate the primary cause.
The correct evaluation is True because the passage explicitly identifies merchant yield underreporting as the primary driver of deficits and clarifies that this underreporting took place under both direct state administration and private tax farming. Consequently, switching exclusively to state administration would fail to eliminate the primary cause of the shortfalls.

Adım Adım Çözüm

1
Identify the primary cause of provincial treasury shortfalls according to the text.
The text identifies the primary cause as local merchants systematically underreporting agricultural yields prior to tax assessment.
Determining the root cause established by empirical audit in the text is necessary to evaluate statements about resolving deficits.
2
Analyze the scope condition attached to the primary cause.
The text specifies that this underreporting occurred 'regardless of whether tax collection was managed directly by state bureaucrats or auctioned to private tax farmers.'
This modifier proves that the method of collection (state bureaucrats vs. private tax farmers) did not affect the occurrence of underreporting.
3
Evaluate the truth value of the statement regarding replacing tax farmers.
Since underreporting happens under state administration just as it does under tax farming, changing the administration method to state collection would leave the underreporting intact.
Strict logical deduction confirms that altering a non-causal variable does not eliminate the primary cause of the outcome.

Anahtar Kavram

Single-Sentence Inference: Fact-Based Scope Limitation
Tahmini Süre:1m 30s
Soru 5Soru

Passage:
In plant ecology, the common mycorrhizal network (CMN) hypothesis posits that subterranean fungal hyphae interconnect distinct plant root systems, facilitating the inter-plant transfer of carbon and signaling molecules. Proponents argue that mature trees leverage these networks to subsidize the energy requirements of shaded saplings of the same species. However, recent empirical trials challenge this cooperative model. While isotopic tracing confirms that carbon compounds do move between plants via fungal conduits, the direction of transfer is determined strictly by concentration gradients and soil moisture differentials rather than kin selection or species affinity. Furthermore, mycorrhizal fungi act not as passive pipelines, but as active consumers, retaining up to eighty percent of the transferred carbon to support their own respiratory and reproductive metabolism. Consequently, when a donor plant experiences severe drought, fungal carbon uptake accelerates relative to inter-plant transport, effectively diminishing net carbon delivery to adjacent receiver plants regardless of their light environment. Thus, what was previously interpreted as altruistic resource sharing between conspecific trees may primarily represent incidental leakage during fungal resource acquisition.

Based on the passage above, evaluate whether the following statement is True or False:

"A shaded sapling connected to a mature tree via a common mycorrhizal network will experience a reduction in net carbon receipt from the network if the mature tree undergoes severe drought."

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Cevap: True

Cevap

True. The statement correctly synthesizes two separate premises from the passage to form a valid inference.
Classifying the assertion as True is correct because the passage defines the mature tree as a potential carbon donor and the shaded sapling as a receiver, and later specifies that severe drought in a donor plant accelerates fungal consumption, thereby diminishing net carbon delivery to any receiver plant regardless of its light conditions.

Adım Adım Çözüm

1
Map the specific entities in the statement to the general functional roles defined in the passage.
The mature tree represents the 'donor plant' and the shaded sapling represents the 'receiver plant' within the fungal network framework.
The second sentence introduces mature trees as carbon sources for shaded saplings, establishing their respective donor and receiver roles.
2
Locate and analyze the passage's rule regarding environmental stress on donor plants.
When a donor plant experiences severe drought, fungal consumption increases relative to transport, resulting in diminished net carbon delivery to receiver plants.
Sentence six details the exact mechanism governing resource transfer during periods of drought stress.
3
Synthesize the role definitions and the transfer mechanism to draw a logical conclusion.
If the mature tree (donor) suffers severe drought, net carbon delivery to the shaded sapling (receiver) diminishes, regardless of the sapling's shaded status.
Combining non-contiguous premises confirms that severe drought in the mature tree reduces net carbon receipt by the shaded sapling.

Anahtar Kavram

Synthesizing non-contiguous statements to deduce valid logical inferences.
Soru 6Soru

Read the following passage:

For decades, geophysicists operated under the classical plume model, which posits that narrow columns of hot mantle material rise from near the core-mantle boundary to form intraplate volcanic hotspots. Recently, however, plate-tectonic theorists led by Dr. Elena Vance have proposed alternative models explaining hotspots entirely through upper-mantle shallow processes and lithospheric tension, suggesting deep plumes are an unnecessary hypothesis. While Vance's team rightly highlights the seismic inconsistencies and thermal anomalies that classical plume theory struggles to reconcile, their total rejection of core-mantle heat flux seems overly hasty. High-resolution seismic tomography has increasingly revealed deep mantle conduits under several major oceanic swells, indicating that mantle dynamics are far more heterogeneous than Vance's uniform shallow-source model admits. Thus, while shallow stress field variations undoubtedly modulate surface volcanism, discarding deep-mantle plume contributions wholesale risks obscuring the complex, multi-layered nature of planetary heat dissipation.

Evaluate the following statement based on the passage above:

The author's attitude toward Dr. Vance's position can be described as qualified skepticism, acknowledging the merit of Vance's critiques of classical theory while considering her complete rejection of deep plumes to be premature.

Cevabı ve açıklamayı göster

Cevap: True

Cevap

True
The evaluated statement accurately captures the author's nuanced perspective. The author uses positive framing ('rightly highlights') to validate Vance's identification of empirical flaws in classical theory, but uses critical language ('overly hasty', 'risks obscuring') regarding Vance's ultimate conclusion. This balanced stance of partial agreement combined with doubt about the ultimate conclusion is precisely defined as qualified skepticism.

Adım Adım Çözüm

1
Analyze the author's praise/concession regarding Vance's position
The phrase 'rightly highlights the seismic inconsistencies' indicates that the author agrees with Vance's critique of classical theory.
Establishing positive sentiment toward specific aspects of Vance's work.
2
Analyze the structural pivot and criticism of Vance's ultimate claim
The phrase 'their total rejection... seems overly hasty' indicates that the author disagrees with Vance's complete dismissal of deep plumes.
Identifying the limitation and skepticism in the author's overall stance.
3
Synthesize the two components to determine the overall tone
Combining respect for specific critiques with skepticism toward the broad conclusion yields 'qualified skepticism'.
Matching textual evidence directly to the proposed tone descriptor.

Anahtar Kavram

Author Attitude and Tone Inferences
Soru 7Soru

Read the following excerpt from a history of maritime cartography:

"Although sixteenth-century Venetian cartographers routinely attributed the high precision of portolan charts to superior magnetic compass calibration, modern archival analysis reveals that this accuracy stemmed primarily from the systematic cross-referencing of standardized mariners' logbooks, which compensated for localized magnetic declination errors that individual navigators could not independently calculate."

Based on the passage, which of the following can be properly inferred regarding sixteenth-century Venetian cartographers?

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Cevap: They held an inaccurate belief regarding the primary cause of the high precision found in portolan charts.

Cevap

Sixteenth-century Venetian cartographers held an inaccurate belief regarding the primary cause of the precision of portolan charts.
The sentence explicitly contrasts what cartographers 'attributed' chart precision to (compass calibration) with what modern analysis shows was the 'primary' cause (logbook cross-referencing). This directly supports the deduction that the cartographers were mistaken about why their charts were so precise.

Adım Adım Çözüm

1
Analyze the structural contrast in the target sentence
The clause beginning with 'Although' sets up a contrast between what sixteenth-century cartographers believed ('attributed... to superior magnetic compass calibration') and what modern analysis reveals ('stemmed primarily from... logbooks').
Understanding contrast pivots is essential to identifying misattributions.
2
Deduce the logical implication regarding the cartographers' perspective
Since cartographers attributed precision to compass calibration, but precision actually derived primarily from logbook cross-referencing, their belief about the primary cause was inaccurate.
A direct logical deduction must strictly rely on the relationship stated in the text.

Anahtar Kavram

Single-Sentence Inferences
Soru 8Soru

Passage:
During the early Levant Bronze Age, the transition from unalloyed copper to arsenical bronze marked a critical shift in regional metallurgy. Early smelting workshops relied on localized copper ores with variable arsenic impurity levels. Scholars initially hypothesized that early smiths deliberately added arsenic-rich minerals to enhance the metal's hardness. However, recent isotopic analyses of local slag heaps indicate that furnace temperatures were insufficient to volatilize arsenic from secondary mineral additives. Instead, the presence of arsenical copper in early artifacts corresponds directly to natural variations in the mineralogical composition of localized ore strata extracted across distinct mining phases.

Later in the period, the adoption of tin bronze necessitated long-distance trade networks, as usable tin deposits were entirely absent from the Levant. Unlike arsenical copper artifacts, which varied in composition according to local ore layers, tin bronze objects from this later phase display a highly uniform ratio of tin to copper across distant urban settlements. Archaeologists attribute this compositional standardization to the emergence of centralized municipal authorities that managed the procurement and distribution of imported tin. Consequently, while the composition of early arsenical copper was governed chiefly by regional geological variation, the consistent quality of later tin bronze depended on institutional mechanisms for managing external trade.

Based on the passage above, is the following statement True or False?

Statement: The contrast in compositional consistency between early arsenical copper artifacts and later tin bronze artifacts reflects a transition from metallurgical outcomes governed by localized geological variations to those regulated by centralized institutional distribution.

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Cevap: True

Cevap

True. The passage indicates that early arsenical copper composition was determined by localized ore strata variations, whereas later tin bronze uniformity was managed by centralized municipal authorities.
The statement accurately synthesizes findings from across both paragraphs of the passage. The first paragraph explains that variations in early arsenical copper artifacts resulted from natural mineralogical differences in local ore deposits. The second paragraph attributes the standardization of later tin bronze artifacts to centralized municipal administration of imported tin trade. Combining these distinct details confirms that metallurgical consistency evolved from being constrained by regional geology to being regulated by institutional distribution.

Adım Adım Çözüm

1
Analyze the passage's explanation of early arsenical copper composition.
Paragraph 1 demonstrates that variations in arsenical copper artifacts were caused by natural differences in local ore strata extracted across mining phases.
Establishing the cause of compositional variability in early artifacts provides the first half of the synthesized comparison.
2
Analyze the passage's explanation of later tin bronze composition.
Paragraph 2 demonstrates that the uniform ratio in tin bronze artifacts across settlements was driven by centralized municipal authorities managing imported tin.
Establishing the cause of standardization in later artifacts provides the second half of the synthesized comparison.
3
Synthesize the findings from both paragraphs to evaluate the statement.
The shift in compositional consistency directly corresponds to the transition from outcomes driven by localized geological factors to those managed by centralized institutional distribution, validating the statement as True.
Combining evidence across non-contiguous sections of the passage confirms the truth of the statement.

Anahtar Kavram

Multi-Sentence Synthesis Inferences
Soru 9Soru

Consider the following passage snippet:
"While the initial 1920s oceanic survey aimed to map deep-sea trenches using echo-sounding technology, the unexpected reflection patterns recorded near mid-ocean ridges led researchers to deduce the presence of vast underwater mountain chains."

True or False: The researchers who designed the 1920s oceanic survey originally set out with the explicit intention of mapping underwater mountain chains.

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Cevap: False

Cevap

The statement is False.
The statement is false because the sentence explicitly contrasts the initial aim of mapping deep-sea trenches with the unexpected discovery of underwater mountain chains.

Adım Adım Çözüm

1
Identify the original objective stated in the sentence.
The text states that the initial survey aimed to map deep-sea trenches.
Directly identifying the stated goal reveals the researchers' original intent.
2
Evaluate the nature of the discovery of underwater mountain chains.
The mountain chains were deduced from unexpected reflection patterns.
The word 'unexpected' confirms that mapping mountain chains was not an initial goal.

Anahtar Kavram

Single-Sentence Inference
Soru 10Soru

The conventional paradigm regarding the adoption of agriculture during the Neolithic transition long posited that farming represented an unambiguous technological leap, liberating early human societies from the precarious nature of hunter-gatherer subsistence. However, recent bioarchaeological analyses examining paleopathological records have complicated this triumphalist narrative. Researchers evaluating skeletal remains from early agricultural settlements have documented marked increases in enamel hypoplasia, nutritional deficiencies, and degenerative joint diseases compared to preceding foraging populations.

While these empirical findings have led some revisionist scholars to characterize the transition to agriculture as an unmitigated disaster for human well-being, such a polarized reinterpretation suffers from its own analytical rigidity. Proponents of this pessimistic view tend to extrapolate individual health markers to overall societal health without accounting for the demographic advantages that sedentary agriculture undeniably conferred. Specifically, agricultural surplus, despite lowering individual nutritional quality, dramatically reduced inter-birth intervals and cushioned communities against catastrophic seasonal starvations.

Thus, framing the Neolithic transition as either a glorious advancement or a tragic misstep obscures the fundamental trade-offs inherent in subsistence shifts. The shift to cultivation was neither a simple triumph of human ingenuity nor a catastrophic blunder, but rather a complex evolutionary realignment in which populations traded individual physical stature and epidemiological resilience for demographic capacity and institutional durability. Scholars evaluating this transition must move beyond monolithic value judgments to examine how these countervailing pressures operated across distinct ecological micro-contexts.

Based on the passage, the author's attitude toward the perspective held by the 'revisionist scholars' can best be described as which of the following?

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Cevap: Measured skepticism regarding their overarching conclusion, combined with implicit acknowledgment of the empirical evidence underpinning their stance

Cevap

The author's attitude toward the revisionist scholars is best described as measured skepticism regarding their overarching conclusion, combined with implicit acknowledgment of the empirical evidence underpinning their stance.
The correct answer accurately captures the dual nature of the author's response: the author recognizes the validity of the bioarchaeological findings that disrupted the old view, but exercises measured skepticism toward the revisionist scholars' extreme conclusion that agriculture was an 'unmitigated disaster', noting that their view suffers from analytical rigidity.

Adım Adım Çözüm

1
Locate references to revisionist scholars and identify surrounding context
The second paragraph notes that empirical findings of health decline led revisionist scholars to view agriculture as an 'unmitigated disaster'.
Establishing where the target group's view is discussed.
2
Analyze authorial tone markers and structural pivots
The author states that 'such a polarized reinterpretation suffers from its own analytical rigidity' and argues they extrapolate individual health markers without considering demographic gains.
Determining the author's critique of their stance.
3
Synthesize the author's balanced stance
The author respects the empirical complication of the old narrative ('empirical findings') but rejects the extreme pessimistic conclusion of the revisionists.
Formulating the nuanced tone descriptor matching the correct choice.

Anahtar Kavram

Author Attitude and Tone Inferences
Soru 11Soru

Historians studying the mid-sixth-century cooling event (536–550 CE) long debated whether solar minima or volcanic activity triggered the severe global temperature drop recorded in tree-ring anomalies. Recent ice-core analyses from Greenland and Antarctica revealed synchronized spikes in volcanic sulfate deposition dating precisely to 536 CE and 540 CE, leading most paleoclimatologists to conclude that consecutive stratospheric sulfur eruptions were the sole primary driver of the decade-long cold spell. Proponents of this volcanic hypothesis point out that high-latitude volcanic plumes reflect solar radiation back into space, thereby inducing rapid, multi-year hemispheric cooling.

However, planetary geochemists note that sulfate deposition in polar ice sheets merely indicates the magnitude of atmospheric sulfur aerosol loading, not the geographic elevation or latitude of the eruption source, nor the duration of tropospheric residence. Crucially, tree-ring density data across Northern Hemisphere boreal forests show that growth suppression persisted for nearly fourteen years after 536 CE—a duration nearly double the typical residence time of volcanic aerosols in the stratosphere before gravitational settling occurs. To account for this discrepancy, some researchers contend that an initial volcanic cooling pulse triggered a self-sustaining oceanic-sea ice feedback loop in the North Atlantic, wherein expanding sea ice increased planetary albedo and weakened heat transport from the tropics, thus prolonging cold conditions long after the volcanic aerosols had cleared.

Which of the following is an assumption on which the researchers' explanation for the prolonged duration of the cooling event depends?

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Cevap: The fourteen-year period of tree-ring growth suppression was not driven by subsequent volcanic eruptions whose aerosol deposits failed to register in the analyzed polar ice cores.

Cevap

The argument depends on the assumption that the fourteen-year period of tree-ring growth suppression was not driven by subsequent volcanic eruptions whose aerosol deposits failed to register in the analyzed polar ice cores.
The correct answer identifies a foundational premise required for the researchers' conclusion to hold. The researchers claim that an oceanic-sea ice feedback loop was required to explain why cooling lasted 14 years when volcanic aerosols only linger for roughly half that time. For this gap to require a feedback explanation, it must be assumed that additional, undetected volcanic eruptions did not occur during that window to cause the remaining years of cooling. If such unrecorded eruptions had occurred, they would account for the prolonged cold without requiring any sea-ice feedback mechanism.

Adım Adım Çözüm

1
Identify the author's specific conclusion and the underlying logical gap.
The researchers contend that an oceanic-sea ice feedback loop must have prolonged the mid-sixth-century cooling because tree-ring growth suppression lasted 14 years, whereas volcanic aerosols typically settle out of the stratosphere in about 7 years.
An unstated assumption is a necessary premise that bridges the evidence (aerosols last ~7 years while cooling lasts 14 years) to the claim (sea ice feedback sustained the remaining cold period).
2
Apply the Negation Test to candidate premises.
Negate the statement regarding unrecorded eruptions: 'The fourteen-year cooling was in fact driven by subsequent volcanic eruptions that were not captured in polar ice cores.'
If unrecorded eruptions sustained the cooling, the premise of an unexplained 7-year gap collapses. The feedback loop hypothesis would no longer be necessary to explain the duration discrepancy.
3
Confirm that the negated statement shatters the argument's necessity.
Because negating this statement invalidates the need for the feedback loop explanation, the original statement is a strictly required unstated assumption.
A valid GMAT unstated assumption must be essential; its logical denial must render the author's reasoning invalid or redundant.

Anahtar Kavram

Unstated Passage Assumptions & Negation Test in Reading Comprehension
Soru 12Soru

Passage:
In the late twentieth century, agricultural economists theorized that real-time satellite monitoring of soil moisture would universally stabilize crop yield predictions in arid farming regions. Early optical satellite sensors, however, were restricted by cloud cover and canopy interference, yielding sparse datasets that failed to improve predictive models for shallow-root grain crops. To overcome these limitations, researchers in the 2010s deployed synthetic aperture radar (SAR), a microwave imaging technique capable of penetrating upper canopy layers to measure moisture in the top five centimeters of soil.

While SAR significantly enhanced yield forecasts for short-cycle annual crops, its integration into regional risk assessment models produced unexpected anomalies when applied to deep-rooted perennial crops such as almond orchards. Soil scientists discovered that SAR signals reflect primarily surface moisture, whereas perennial yield stability depends overwhelmingly on subsoil hydrological reserves located more than two meters deep. Consequently, regions heavily reliant on SAR data for long-term irrigation planning systematically underestimated drought vulnerability during prolonged dry spells, as surface moisture readings remained temporarily inflated by minor, superficial precipitation events that never reached the deep root zone.

Based on the passage, which of the following can be logically inferred regarding the application of remote sensing technologies to agricultural yield forecasting?

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Cevap: Assessing the drought vulnerability of certain perennial crops requires monitoring soil layers that extend deeper than the penetration limit of synthetic aperture radar.

Cevap

Assessing the drought vulnerability of certain perennial crops requires monitoring soil layers that extend deeper than the penetration limit of synthetic aperture radar.
The passage establishes in the first paragraph that synthetic aperture radar measures moisture only within the top five centimeters of soil. In the second paragraph, it explains that deep-rooted perennial crops depend on water reserves deeper than two meters, and that relying solely on surface radar readings leads to underestimating drought risk. Combining these two premises logically leads to the conclusion that evaluating drought vulnerability for such perennial crops requires measuring soil layers deeper than what surface radar can penetrate.

Adım Adım Çözüm

1
Identify key facts regarding synthetic aperture radar capability from the first paragraph.
Synthetic aperture radar measures moisture in the top five centimeters of soil by penetrating upper canopy layers.
Establishing the technical measurement boundary of synthetic aperture radar provides the baseline depth constraint.
2
Identify key facts regarding deep-rooted perennial crop requirements from the second paragraph.
Perennial crop yield stability and drought vulnerability depend on subsoil hydrological reserves located deeper than two meters.
Determining the physiological moisture requirement depth for perennial crops reveals what data is needed to assess their risk.
3
Synthesize the facts across paragraphs to form a valid deduction.
Because synthetic aperture radar measures only the top 5 cm, and perennial crops depend on water reserves below 2 meters, accurately evaluating drought vulnerability for these crops necessitates monitoring soil depths beyond synthetic aperture radar's 5 cm reach.
Combining non-contiguous premises yields a necessary conclusion that directly supports the correct inference.

Anahtar Kavram

Multi-Sentence Synthesis Inference
Soru 13Soru

Passage:
During the late nineteenth century, the North American timber industry experienced a rapid transition from river-driven log drives to specialized rail transport. Early river drives relied heavily on seasonal spring freshets—periods of high water caused by snowmelt—to flush timber downstream to coastal sawmills. Consequently, timber operations remained idle throughout the winter and late summer, leaving capital equipment underutilized for nearly seven months each year. In contrast, the implementation of narrow-gauge logging railways allowed timber syndicates to harvest and haul logs continuously regardless of weather conditions or river volume. Although railway construction demanded substantial initial capital outlay, the resulting year-round operations significantly lowered fixed costs per unit of lumber produced. Furthermore, year-round harvesting enabled sawmills to supply urban construction markets during winter months when timber prices historically peaked due to seasonal shortages, thereby capturing substantial market premiums that easily offset the debt service on railway infrastructure.

Statement: Based on the passage, timber syndicates that adopted narrow-gauge logging railways were able to offset their infrastructure debt service in part by selling lumber during months when market prices were elevated due to seasonal supply shortages.

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Cevap: True

Cevap

The statement is True. By combining information about year-round railway transport and winter market price peaks caused by shortages, it can be validly inferred that winter sales helped offset infrastructure debt.
The statement is correct because the passage directly connects the adoption of narrow-gauge railways to year-round harvesting, which allowed sawmills to take advantage of winter price peaks caused by seasonal shortages and capture premiums that offset railway debt service.

Adım Adım Çözüm

1
Identify the operational change brought by narrow-gauge railways.
The passage establishes that narrow-gauge railways enabled timber syndicates to harvest and haul timber year-round, including during winter when river drives were previously idle.
Establishing year-round operational capability is essential for evaluating winter sales activity.
2
Analyze the financial consequences of winter market sales.
The passage states that winter timber prices peaked due to seasonal shortages and that selling during this time captured premiums that offset debt service on railway infrastructure.
Connecting market conditions to financial outcomes shows how infrastructure debt was offset.
3
Synthesize the findings to evaluate the statement.
Combining operational continuous harvesting with winter price premiums confirms that selling during high-price shortage periods offset railway debt.
Multi-sentence synthesis validates the truth of the given statement.

Anahtar Kavram

Multi-Sentence Synthesis Inferences
Soru 14Soru

Passage:
For over half a century, historiographical consensus regarding late Hittite administrative organization posited a rigid, centralized bureaucracy operating from Hattusa, relying almost exclusively on cuneiform tablets to dictate provincial policy. However, recent epigraphic discoveries at peripheral sites in southern Anatolia have prompted historian Elena Rostova to challenge this monolithic model. Rostova contends that Hieroglyphic Luwian inscriptions on monumental stone reliefs reflect a decentralized, semi-autonomous network of regional rulers whose governance was largely independent of imperial oversight.

While Rostova's framework offers a welcome corrective to earlier top-down narratives by highlighting the agency of provincial elites, her assertion that central authority was virtually non-existent outside the capital overstates the evidence. The presence of standardized imperial seal impressions alongside local Luwian texts suggests a far more dynamic interplay between imperial administration and regional authority than Rostova admits. Moreover, her analysis tends to treat Luwian epigraphy as inherently subversive, overlooking how provincial rulers frequently deployed imperial iconography to legitimize their own positions within the broader Hittite hegemony. Consequently, while Rostova successfully demonstrates that Anatolian political structure was far more heterogeneous than previously recognized, her model ultimately substitutes one simplistic dichotomy for another.

Statement: Based on the passage, the author's attitude toward Elena Rostova's historical framework is best characterized as measured appreciation for its dismantling of traditional views, combined with critical skepticism regarding its overstated conclusions.

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Cevap: True

Cevap

True. The author demonstrates a balanced posture toward Rostova's work, explicitly acknowledging its merits as a corrective while criticizing its analytical overreach.
The author explicitly strikes a middle ground: praising Rostova for offering a 'welcome corrective' to past top-down models, while simultaneously pointing out that her conclusions overstate the evidence and substitute one simplistic view for another.

Adım Adım Çözüm

1
Analyze tone indicators demonstrating positive valuation of Rostova's work.
Identified phrases such as 'welcome corrective' and 'successfully demonstrates that Anatolian political structure was far more heterogeneous'.
Establishes that the author holds appreciation for Rostova's contribution to dismantling the traditional consensus.
2
Analyze tone indicators demonstrating critical or skeptical valuation.
Identified phrases such as 'overstates the evidence', 'overlooking how provincial rulers frequently deployed imperial iconography', and 'substitutes one simplistic dichotomy for another'.
Establishes that the author rejects Rostova's extreme conclusion of total decentralization.
3
Synthesize the author's overall stance.
The attitude is qualified appreciation combined with critical skepticism.
Validates that the statement accurately describes the nuanced, dual-sided tone of the author.

Anahtar Kavram

Author Attitude and Tone Inferences
Soru 15Soru

Read the following sentence from an essay on early twentieth-century physical metallurgy:

"Although early twentieth-century physical metallurgists recognized that trace additions of titanium could impede grain growth in recrystallized aluminum-copper alloys, they incorrectly attributed this stabilization exclusively to grain-boundary pinning by insoluble intermetallic precipitates rather than to solute drag exerted by unprecipitated titanium atoms during high-temperature annealing."

Which of the following can be most reasonably inferred from the sentence regarding the behavior of aluminum-copper alloys containing trace additions of titanium?

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Cevap: Grain growth in recrystallized aluminum-copper alloys can be inhibited by mechanisms other than grain-boundary pinning caused by insoluble intermetallic precipitates.

Cevap

Grain growth in recrystallized aluminum-copper alloys can be inhibited by mechanisms other than grain-boundary pinning caused by insoluble intermetallic precipitates.
The correct answer is supported by the author's statement that metallurgists 'incorrectly attributed this stabilization exclusively to grain-boundary pinning... rather than to solute drag.' This directly implies that solute drag—a mechanism distinct from precipitate pinning—also contributes to impeding grain growth, meaning that grain growth can indeed be inhibited by mechanisms other than precipitate pinning.

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1
Analyze the factual assertions in the target sentence.
The sentence establishes that trace titanium additions do impede grain growth (stabilization) and that metallurgists recognized this effect.
Understanding the baseline facts stated in the sentence is required before evaluating logical deductions.
2
Analyze the author's critique of the metallurgists' attribution.
The author notes that metallurgists erred by attributing stabilization *exclusively* to grain-boundary pinning by insoluble precipitates instead of recognizing solute drag by unprecipitated titanium atoms.
Identifying the contrast between the incorrect attribution (exclusive precipitate pinning) and the overlooked factor (solute drag) clarifies what actually causes the stabilization.
3
Derive the strict single-sentence inference.
Because solute drag by unprecipitated titanium atoms contributes to impeding grain growth, grain growth inhibition is not limited solely to precipitate pinning.
This deduction directly supports the conclusion that mechanisms other than precipitate pinning operate to inhibit grain growth in these alloys.

Anahtar Kavram

Single-Sentence Logical Inference
Soru 16Soru

In the mid-twentieth century, economic historian Karl Polanyi posited that modern market economies are unique in their historical detachment of economic transactions from social relationships. Polanyi argued that prior to the Industrial Revolution, economic activity was deeply embedded within broader cultural customs, religious practices, and communal obligations. In these traditional societies, trade operated primarily through reciprocity and redistribution rather than competitive price mechanisms. However, contemporary sociologists contend that Polanyi overstated this historical disjunction. They assert that even within modern financial systems, social networks continue to shape trade practices. According to these critics, modern commercial exchanges remain embedded in social relationships, though they function through formal institutional channels rather than informal communal ties.

In the final sentence of the passage, to which of the following does the word "they" refer?

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Cevap: modern commercial exchanges

Cevap

The word "they" refers to modern commercial exchanges.
The correct answer accurately identifies the antecedent of the pronoun. In the final sentence, the main clause asserts that modern commercial exchanges remain embedded in social relationships. The contrastive clause that follows explains that these same commercial exchanges function through formal institutional channels rather than informal communal ties. Therefore, the pronoun functions as a subject pronoun referring to modern commercial exchanges.

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1
Locate the targeted pronoun in the text.
The pronoun "they" appears in the final clause: "...though they function through formal institutional channels..."
Identifying the clause structure clarifies the grammatical role of the pronoun.
2
Analyze the subject-verb relationship of the clause.
The verb phrase is "function through formal institutional channels". Ask what entities perform this function.
Pronouns must logically and grammatically agree with their antecedents.
3
Trace back to the main subject of the sentence.
The main clause states that "modern commercial exchanges remain embedded in social relationships". It is the commercial exchanges that function through formal institutional channels.
Connecting the dependent clause back to the main subject yields the correct referent.

Anahtar Kavram

Pronoun Antecedent Identification
Soru 17Soru

Historiographical debates regarding medieval European merchant guilds often pit the efficiency hypothesis—which posits that guilds emerged to overcome market failures by enforcing contracts and securing property rights—against the distributional hypothesis, which views guilds primarily as rent-seeking cartels that restricted competition. Proponents of the efficiency model argue that merchant guilds provided institutional mechanisms necessary for long-distance trade in an era lacking transnational legal framework. Specifically, theoretical models frequently highlight the bilateral reputation mechanism among the Maghribi traders of the eleventh century, wherein informal social networks enforced commercial honesty through collective boycott.

However, critics of the efficiency framework question the validity of extrapolating the Maghribi model to European craft and merchant guilds. They note that while the Maghribi coalition relied on homogeneous ethnic ties and informal sanctions, European guilds were formal corporate bodies recognized by urban authorities and granted explicit coercive monopolies. For instance, in fourteenth-century Bruges, foreign merchant enclaves secured legal jurisdiction over their members not by facilitating open market entry, but by extracting exclusive trading privileges from municipal authorities in exchange for loans and revenue. This specific historical detail serves to underscore that the mechanisms preserving commercial advantages in European trade differed fundamentally from the reputational incentives operating within informal trader coalitions, thereby illustrating that institutional structures effective in small-scale, culturally cohesive networks cannot be presumed to account for the formal organizational evolution of European mercantile institutions.

Based on the passage, the author refers to the 'legal jurisdiction' secured by foreign merchant enclaves in fourteenth-century Bruges primarily in order to accomplish which of the following?

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Cevap: Highlight a structural distinction between formal European corporate entities and informal trader networks to challenge the generalizability of the efficiency model

Cevap

The author refers to the legal jurisdiction in Bruges primarily to highlight a structural distinction between formal European corporate entities and informal trader networks, thereby challenging the generalizability of the efficiency model to European guilds.
The passage introduces the example of fourteenth-century Bruges to contrast the formal, monopoly-seeking nature of European guilds with the informal, reputation-based coalitions of the Maghribi traders. By emphasizing that foreign enclaves in Bruges extracted exclusive legal privileges from municipal authorities, the author supports the critics' stance that models based on informal efficiency cannot be universally generalized to explain the development of European mercantile institutions.

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1
Locate the targeted detail in the passage text
The reference to 'legal jurisdiction' in fourteenth-century Bruges appears in the second paragraph, following the author's statement that critics question extrapolating the Maghribi model to European guilds.
Identifying the immediate context establishes the specific claim the detail is meant to elaborate or support.
2
Analyze the structural and logical function of the detail within the paragraph
The author contrasts the Maghribi traders' informal, reputation-based network with the Bruges enclaves' extraction of formal, coercive legal privileges and municipal monopolies. The text explicitly concludes that this example shows institutional structures effective in informal networks cannot be presumed to account for European guild evolution.
Determining the rhetorical goal requires evaluating how the example connects the counterargument to the critique of the efficiency model.
3
Evaluate the answer choices against the analyzed functional role
The option asserting that the detail highlights a structural distinction to challenge the generalizability of the efficiency model directly matches the author's logic.
Selecting the option that precisely captures the rhetorical function avoids common traps such as misinterpreting tone, confusing supporting detail with main idea, or reversing argument direction.

Anahtar Kavram

Evaluating the functional role of a specific detail within a multi-viewpoint academic argument
Soru 18Soru

In analyzing administrative practices of Old Babylonian palatial economies, early twentieth-century Assyriologists often posited that impressment seals stamped onto clay tablets functioned primarily as legal signifiers of personal ownership, akin to modern signatures. However, recent quantitative re-examinations of archival assemblages from Larsa suggest a far more dynamic administrative role. Rather than merely authenticating property titles, seal impressions functioned as active instruments of institutional surveillance and transactional clearance.

For instance, tablet collections tracking agricultural disbursement reveal that double-sealed bullae—clay envelopes enclosing transaction records—were frequently broken and re-stamped at sequential checkpoints across state supply chains. If seal impressions served strictly as static tokens of individual ownership, such iterative re-sealing across intermediate storage facilities would be superfluous. Instead, these recurring impressions served to record the transfer of custodial responsibility between middle-tier bureaucrats, creating an auditable provenance trail for perishable commodities. Furthermore, chemical composition analysis of the clay matrices demonstrates that different seals were impressed using distinct localized clays, confirming that sealings were applied physically at disparate geographic nodes rather than at a centralized palatial chancellery. Consequently, the presence of specific seal impressions on economic tablets must be reinterpreted not as passive markers of proprietary rights, but as structural markers of administrative flow, delineating the jurisdictional boundaries of distinct bureaucratic departments within the palatial apparatus.

The author mentions the breaking and re-stamping of double-sealed bullae at sequential checkpoints primarily in order to do which of the following?

Cevabı ve açıklamayı göster

Cevap: provide evidence challenging the assumption that seal impressions functioned strictly as static indicators of individual property ownership.

Cevap

The author mentions the breaking and re-stamping of double-sealed bullae to provide evidence challenging the assumption that seal impressions functioned strictly as static indicators of individual property ownership.
The correct option accurately captures the rhetorical function of mentioning the bullae re-stamping. The author introduces this fact specifically to show that sealings were used dynamically during commodity transfer across checkpoints, directly countering the traditional view that seals functioned merely as static proof of personal ownership.

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1
Locate the target detail in the passage text.
The reference to breaking and re-stamping double-sealed bullae occurs in the second paragraph.
Identifying the exact context surrounding the detail is required to evaluate its rhetorical function.
2
Analyze the surrounding context and logical argument structure.
The author explicitly states that if seals were merely static tokens of individual ownership, iterative re-sealing at intermediate points would be superfluous.
Determining why the author introduced this specific evidence reveals its functional purpose.
3
Synthesize the functional role with the primary claim.
The detail acts as empirical counter-evidence against the traditional ownership-only view and supports the new model of dynamic administrative tracking.
Specific details in GMAT Reading Comprehension serve to support, illustrate, or qualify broader paragraph and passage claims.

Anahtar Kavram

Functional Role of Specific Details
Tahmini Süre:2m 0s
Soru 19Soru

Consider the following statement from a history of linguistics text:

"In his 1952 monograph on the decipherment of Linear B, Michael Ventris argued that despite the prevailing scholarly consensus attributing the tablets' script to an indigenous, non-Greek Aegean language, the structural frequency of specific sign combinations strongly indicated an inflected Indo-European language—a hypothesis that was initially dismissed by classicists until Ventris identified distinct phonetic values that consistently yielded archaic Greek vocabulary."

Based on the statement above, which of the following regarding the scholarly view of Linear B prior to Ventris's identification of phonetic values can be most reliably inferred?

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Cevap: The dominant opinion among scholars was that the language encoded by the Linear B tablets originated in the Aegean region and was not Greek.

Cevap

The dominant opinion among scholars was that the language encoded by the Linear B tablets originated in the Aegean region and was not Greek.
The sentence explicitly notes that there was a 'prevailing scholarly consensus attributing the tablets' script to an indigenous, non-Greek Aegean language' before Ventris's findings persuaded classicists otherwise. Therefore, inferring that the mainstream opinion viewed the language as non-Greek and native to the Aegean is directly supported.

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1
Identify the target statement and break down its structural components
The target sentence contrasts the 'prevailing scholarly consensus' (which viewed the script as an indigenous, non-Greek Aegean language) with Ventris's hypothesis (that it was an inflected Indo-European language).
Single-sentence inference questions require strict deduction grounded exclusively in the provided sentence structure and qualifiers.
2
Evaluate the condition 'prior to Ventris's identification of phonetic values'
The sentence states that classicists initially dismissed Ventris's hypothesis until he identified distinct phonetic values. Prior to that identification, the prevailing scholarly consensus held.
Understanding the timeline established by the modifiers allows us to determine what was believed before the turning point.
3
Match the logical deduction to the options
The claim that the dominant scholarly view considered the script to be an indigenous, non-Greek Aegean language directly paraphrases the explicit consensus mentioned in the sentence.
Valid GMAT Reading Comprehension inferences must be strictly supported without bringing in external assumptions or exaggerating claims.

Anahtar Kavram

Single-Sentence Inferences
Soru 20Soru

In paleoceanographic reconstructions of Cenozoic surface ocean productivity, the accumulation rate of biogenic opal—primarily composed of the siliceous tests of radiolarians and diatoms—has long served as a primary proxy for silica export fluxes. However, oceanographer Elena Rostova demonstrated that raw biogenic opal accumulation rates in deep-sea sediments often fail to correlate with upper-ocean biological productivity due to differential postsedimentary dissolution. In oligotrophic ocean gyres, where bottom waters are strongly undersaturated with respect to amorphous silica, the dissolution rate of radiolarian tests is dictated primarily by the ratio of surface area to structural mass in individual microskeletal frameworks rather than by ambient water temperature. Specifically, Rostova observed that delicate, highly porous lattice structures undergo rapid dissolution in the upper sediment column, whereas robust, thick-walled polycystine shells survive intact, artificially skewing the fossil assemblage toward heavy-bodied taxa. Furthermore, Rostova identified that trace concentrations of adsorbed aluminum ions within the sediment pore waters can passivate the silica surface, reducing dissolution rates by up to two orders of magnitude even in highly undersaturated bottom waters. Consequently, when assessing past silica productivity, researchers who rely solely on total opal weight without accounting for species-specific skeletal density or pore-water aluminum geochemistry risk misinterpreting sediment layers characterized by low opal mass as periods of diminished surface biological activity when, in reality, intense post-depositional dissolution or insufficient aluminum passivation destroyed the lighter siliceous fraction.

According to the passage, Rostova's research explicitly indicates that the preservation of radiolarian tests in undersaturated deep-sea sediments is directly promoted by which of the following factors?

Cevabı ve açıklamayı göster

Cevap: The presence of adsorbed aluminum ions in sediment pore waters that reduce silica dissolution rates.

Cevap

The presence of adsorbed aluminum ions in sediment pore waters that reduce silica dissolution rates.
The correct answer accurately reflects the explicit text statement that adsorbed aluminum ions in sediment pore waters passivate the silica surface and decrease dissolution rates by up to two orders of magnitude, thereby promoting test preservation.

Adım Adım Çözüm

1
Analyze the prompt to locate the specific detail requested
The prompt asks for a factor explicitly cited in the passage that directly promotes the preservation (reduces dissolution) of radiolarian tests in undersaturated ocean sediments.
Direct factual retrieval requires finding explicit text evidence without making external inferences.
2
Scan the passage for explicit statements detailing preservation factors
The text states that 'trace concentrations of adsorbed aluminum ions within the sediment pore waters can passivate the silica surface, reducing dissolution rates by up to two orders of magnitude'.
This sentence provides the exact mechanism by which radiolarian tests are protected from dissolution.
3
Evaluate the answer options against the explicit text evidence
The option referring to adsorbed aluminum ions in sediment pore waters accurately paraphrases this explicit finding.
Matching semantic equivalents confirms the correct direct factual answer choice.

Anahtar Kavram

Direct Factual Retrieval from Academic Text
Tahmini Süre:2m 0s
Sayfa 1 / 11Sonraki
Reading Comprehension: Detail and Inference Alıştırma Soruları — GMAT | Examkin