Tüm alıştırma soruları

In 1815, the cataclysmic eruption of Mount Tambora in Indonesia released massive quantities of volcanic ash and sulfur dioxide into the upper atmosphere, blocking significant amounts of solar radiation from reaching Earth’s surface. _______ global temperatures dropped substantially, culminating in the widespread agricultural failures of the infamous 'Year Without a Summer' in 1816.

Which choice completes the passage with the most logical transition?

Read the passage below. Which transition word or phrase most logically completes the blank?

Text 1
Recent investigations into urban ecosystems suggest that localized thermal zones—often called heat islands—serve as the principal evolutionary driver behind the rapid phenotypic adaptations seen in city-dwelling vegetation. Proponents of this temperature-centric hypothesis point to modifications in leaf morphology, root length, and transpiration rates as direct physiological responses to elevated city temperatures.

Text 2
Conversely, botanist Elspeth Vance argues that thermal gradients are not the primary catalyst for these physical modifications in urban flora. Vance's research demonstrates that urban soil contamination alters microbial symbiotic communities in the rhizosphere. According to Vance, it is this shifting soil microbiome, rather than ambient temperature, that regulates the internal chemical pathways dictating plant stress tolerance and overall structural traits.

Based on the texts, is the following statement true or false?

Statement: Botanist Elspeth Vance (Text 2) would agree with the proponents of the temperature-centric hypothesis in Text 1 that localized temperature shifts are the primary cause of physical adaptations in urban plants.

Text 1
Many planetary scientists argue that the chaotic terrain on Jupiter's moon Europa, characterized by disrupted blocks of ice, suggests a thin ice shell (under 5 kilometers thick) that regularly breaches. This thin-shell model implies that Europa's subsurface ocean frequently interacts with the surface, allowing photosynthetic organisms to potentially thrive near fractures where sunlight penetrates, and facilitating the detection of oceanic biosignatures by passing spacecraft.

Text 2
Conversely, planetary geophysicist Dr. Clara Sterling and her team utilize thermal modeling to argue that Europa's ice shell is likely over 20 kilometers thick. Sterling contends that the heat generated by tidal flexing is dissipated primarily through solid-state convection within the ice, rather than melting it thin. According to Sterling, any chaotic terrain is the result of warm, buoyant ice plumes rising slowly through the thick shell, never actually exposing the ocean directly to the surface.

Based on the passages, is the following statement true or false?
Dr. Clara Sterling would argue that the chaotic terrain on Europa can be explained by geological processes that do not involve the subsurface ocean breaching the ice shell.

Text 1
Many cognitive archaeologists argue that European Upper Paleolithic cave paintings were created primarily as part of shamanic rituals. Researcher Elena Rostova posits that the placement of animal depictions in deep, acoustic-rich chambers of caves indicates that these spaces served as conduits for altered states of consciousness. According to Rostova, the repetitive, geometric signs accompanying the animal figures represent entoptic phenomena—visual patterns generated by the human brain during trance states—rather than early attempts at notation or graphic communication.

Text 2
Linguist Clara Thorne and colleagues analyzed the distribution of thirty specific geometric signs across various Ice Age sites. They discovered that these symbols recur in highly structured pairs and sequences throughout a twenty-thousand-year period, showing consistent patterns of regional variation. Thorne argues that this high degree of systemic repetition suggests the signs functioned as a shared, conventionalized graphic code for transmitting specific semantic information, such as tribal markers or seasonal migration guides, rather than serving as the spontaneous, subjective visual bi-products of ritual ecstasy.

Based on the passages, how would Clara Thorne (Text 2) most likely characterize Elena Rostova's (Text 1) interpretation of the geometric signs accompanying the cave paintings?

For decades, biologists hypothesized that migratory songbirds navigate using magnetoreception, a biological sense that allows them to detect the Earth’s magnetic field. However, early laboratory experiments designed to demonstrate this ability produced highly inconsistent results because the artificial magnetic fields used did not accurately replicate the subtle fluctuations of the natural geomagnetic field. Consequently, many researchers temporarily dismissed the hypothesis in favor of celestial navigation theories. It was not until later field studies employed dynamic, high-fidelity magnetic simulators that scientists confirmed that songbirds do indeed rely on magnetoreception, using it in tandem with visual cues.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
Urban environments present severe challenges to native bird species. Biologist Clara Dupont argues that cities lack the specialized nesting sites and diverse food sources required for these species to survive. Consequently, Dupont contends that urban development inevitably leads to a decline in native bird populations, forcing them to retreat to undisturbed rural habitats.

Text 2
Environmental scientist Kenji Sato conducted a multi-year study of native bird populations across several major metropolitan areas. Sato observed that many native species successfully adjust to urban environments by nesting on high-rise building ledges and foraging on human food waste. While cities do alter traditional habitats, Sato argues that these spaces also provide new, viable resources that support adaptive native species.

Based on the passages, how would Sato (the author of Text 2) most likely characterize Dupont's claim in Text 1 that cities inevitably force native birds to retreat to rural habitats?

Which choice completes the text with the most logical and precise word or phrase?

Some scientists believe that the main function of a zebra's stripes is to keep the animal cool. However, a recent study showed that the stripes actually prevent biting flies from landing on the zebra. The researchers found that flies are confused by the striped pattern and avoid it. This discovery has helped scientists understand how physical traits can protect animals from pests.

Which choice best describes the function of the underlined sentence in the text as a whole?

Read the passage below. Which transition word or phrase most logically completes the blank?

Many psychologists have investigated how social environments influence decision-making. In a recent study, researcher Elena Vance observed teenagers performing risk-assessment tasks in groups. Vance noted that participants were significantly more likely to choose high-risk options when they believed their peers were watching them. This finding suggests that adolescent risk-taking is not solely an individual trait but is heavily mediated by social context. Consequently, intervention programs may be more effective if they target peer group dynamics rather than focusing only on individual behaviors.

Which choice best describes the function of the underlined sentence in the text as a whole?

Text 1
Many cognitive linguists argue that primary metaphors (like "knowing is seeing") are universal because they stem from shared human embodied experiences. They contend that because all humans possess similar sensory-motor apparatuses and interact with the physical world in comparable ways, these foundational conceptual mappings develop identically across all cultures. Furthermore, they assert that language merely reflects these pre-existing, biologically determined cognitive links.

Text 2
Linguist Dr. Aris Thorne argues that while physical embodiment shapes cognition, the universality of primary metaphors is overstated. Thorne points out that cultural practices and environment significantly alter how bodily experiences are conceptualized. Furthermore, Thorne argues that linguistic structures themselves actively feedback into and reshape spatial cognition, rather than simply reflecting passive biological mappings.

Based on the passages, match each claim from Text 1 with the corresponding counterclaim or qualification offered by Dr. Thorne in Text 2.

The plant *Alyssum bertolonii* is known as a hyperaccumulator because it absorbs high concentrations of nickel from soil. While high levels of nickel are toxic to most herbivores, *A. bertolonii* suffers very little insect damage. Because the nickel is stored in the outer leaf tissues, scientists hypothesize that the metal acts as a chemical defense. To test this, researchers grew *A. bertolonii* in nickel-depleted soil. If the hypothesis is correct, insects fed with leaves from these plants would be expected to ______

Which choice most logically completes the text?

For decades, oceanographers believed that deep-sea ecosystems relied entirely on organic matter sinking from the sunlit surface. However, the discovery of hydrothermal vents in 1977 challenged this paradigm by revealing thriving communities independent of sunlight. Rather than utilizing photosynthesis, bacteria near these vents perform chemosynthesis, converting toxic chemicals into energy. This process forms the foundation of a unique food web, supporting organisms like giant tube worms. Consequently, researchers have revised their understanding of life’s metabolic boundaries, demonstrating that geothermal energy can sustain complex ecosystems in absolute darkness.

Which choice best describes the overall structure of the text?

In the late nineteenth century, Harvard College Observatory director Edward Pickering hired a group of women, later known as the "Harvard Computers," to process astronomical data. Among them was Williamina Fleming, who developed a classification system for stars based on the amount of hydrogen observed in their spectra. Fleming organized the stars alphabetically from A to Q, with "A" stars possessing the most prominent hydrogen lines. While Pickering later modified this system with Annie Jump Cannon to reorganize the categories by stellar temperature rather than hydrogen abundance, Fleming's initial system cataloged over ten thousand stars and established the foundational methodology of spectral analysis. Crucially, Fleming's cataloging relied on examining photographic glass plates rather than observing stars directly through a telescope, a practice that allowed her to identify numerous novae and nebulae.

Based on the text, what is true of Williamina Fleming's stellar classification system?

Text 1
Archaeologist Denise Schmandt-Besserat argues that ancient Near Eastern clay tokens represent a direct, linear precursor to cuneiform writing. According to her model, simple geometric tokens representing agricultural goods evolved over millennia into complex, incised tokens. To secure transactions, these tokens were eventually sealed inside clay envelopes (bullae); impressing the tokens onto the envelopes' exteriors to indicate their contents directly inspired the creation of the first written tablets.

Text 2
Linguist Stephen Lieberman and other critics argue that this evolutionary trajectory is oversimplified. They contend that plain and complex tokens served distinct, parallel administrative functions and coexisted for centuries rather than representing successive stages. Furthermore, they note that only a minor fraction of cuneiform signs correspond to token shapes, suggesting that writing emerged primarily as a novel graphic system rather than a direct derivation of tokens.

Match each argument or claim made by Schmandt-Besserat in Text 1 with the corresponding counterargument or qualification presented by Lieberman and other critics in Text 2.

For decades, conservationists viewed peatlands primarily as static carbon sinks, prioritizing their preservation solely for their ability to lock away atmospheric carbon dioxide. However, recent biogeochemical modeling has revealed a more complex dynamic: fluctuating water tables can rapidly transform these ecosystems from net sinks into significant sources of methane, a potent greenhouse gas. This discovery has prompted ecology researchers to advocate for active water-level management rather than passive land preservation. By regulating local hydrology to maintain stable water levels, conservationists can prevent the anaerobic decomposition that triggers methane release. Consequently, modern wetland conservation strategies are shifting from simple land acquisition to complex hydrological engineering.

Which choice best states the main purpose of the text?

Botanists once classified plant secondary metabolites—organic compounds like alkaloids and flavonoids not directly involved in growth or development—primarily as metabolic waste products. More recent studies, however, show that these substances are integral to a plant’s survival strategies. Rather than serving as passive byproducts, secondary metabolites mediate crucial ecological relationships by deterring herbivores, attracting pollinators, and facilitating chemical signaling between neighboring plants. Thus, the synthesis of these compounds represents a highly adaptive evolutionary response to environmental pressures rather than a simple elimination of cellular waste.

Which choice best states the main idea of the text?

Text 1
Planetary scientist Dr. Joseph Meade argues that the majority of the water ice found in the Moon's permanently shadowed polar craters was delivered by water-rich comets during the early history of the solar system. According to Meade, chemical analyses of lunar soil samples reveal hydrogen isotope ratios that closely match those observed in cometary ice, suggesting that these sporadic cosmic impacts are the primary source of lunar water deposits. He maintains that alternative mechanisms are insufficient to explain the large volumes of ice concentrated in these craters.

Text 2
Planetary geologist Dr. Sarah Vance contends that the solar wind—a continuous stream of charged particles from the Sun—is the primary source of the Moon's surface water. Vance suggests that hydrogen ions from the solar wind constantly bombard the lunar regolith, reacting with oxygen atoms in the soil to form hydroxyl and water molecules. She points out that while comets may deliver water, solar wind bombardment is a steady, ongoing process that can easily account for the widespread distribution of water molecules across the lunar surface over billions of years.

Based on the passages, how would Vance (Text 2) most likely characterize Meade's claim (Text 1) regarding the origin of the Moon's water?

Marine biologists have observed that rising ocean temperatures cause kelp forests to lose their structural integrity, making them highly susceptible to storm damage. In regions where ocean temperatures have spiked, kelp canopies have diminished by up to ninety percent. _______, the diverse marine species that rely on these underwater forests for food and shelter have experienced severe population declines.

Which choice completes the passage with the most logical transition?