All practice questions

While preparing a presentation on historical scientific instruments, a student took the following notes:
* The astrolabe is a flat, portable two-dimensional instrument used to calculate the positions of the Sun and stars.
* Due to its portable design, the astrolabe was widely used for maritime navigation.
* The torquetum is a three-dimensional instrument composed of a complex stack of nested plates, dials, and rings.
* The torquetum was designed to take measurements across three coordinate systems.
* Because the torquetum was bulky and delicate, its use was restricted to land-based observatories.
* Both instruments were widely used by astronomers in the medieval Islamic world and Europe.

The student wants to contrast the physical design and primary usage locations of the astrolabe and the torquetum. Which choice most effectively uses information from the given notes to accomplish this goal?

While researching the Denisovans, a student takes the following notes:
* In 2008, archaeologists found a fossilized finger bone in Siberia's Denisova Cave.
* In 2010, geneticists sequenced DNA from the bone and identified a previously unknown, extinct hominin lineage.
* This group was named "Denisovans" after the cave where the fossil was discovered.
* DNA evidence shows that Denisovans interbred with ancient modern humans, leaving genetic traces in some modern populations today.

The student wants to summarize the discovery and significance of the Denisovans. Which choice most effectively uses information from the given notes to accomplish this goal?

Many linguists hypothesize that the vocabulary a language uses for spatial relations influences how its speakers mentally represent space. For instance, speakers of languages that rely on absolute directions (like 'north' or 'east') are thought to maintain a constant awareness of their geographic orientation, unlike speakers of languages that rely on relative directions (like 'left' or 'right'). To test this, researcher Kenji Sato and colleagues placed participants from two distinct linguistic groups in a windowless, rotating room. Sato hypothesized that after the room was rotated, speakers of the absolute-direction language would still be able to accurately point toward specific geographic landmarks, whereas speakers of the relative-direction language would not.

Which finding, if true, would most directly support Sato's hypothesis?

Evolutionary biologist Dr. Sonia Alvarez investigated how urbanization affects the diet of the green anole lizard (*Anolis carolinensis*). Alvarez hypothesized that because urban environments are warmer than nearby forests due to the urban heat island effect, urban green anoles experience elevated metabolic rates. To maintain their energy balance under these conditions, Alvarez proposed that urban lizards selectively forage for prey items with higher lipid densities, such as beetles and spiders, rather than lower-lipid prey like flies and ants.

Which finding, if true, would most directly support Alvarez's hypothesis?

While preparing a presentation on economic transaction models, a student took the following notes:
* The English auction and the Dutch auction are two primary bidding formats used to sell goods.
* In an English auction, the price begins low and is raised incrementally until only one bidder remains.
* In a Dutch auction, the price begins high and is lowered incrementally until a bidder accepts the current price.
* Both formats are designed to establish the market value of an item under conditions of asymmetric information.

Stepwells (baoris) of western India are celebrated for their intricate subterranean architecture. Early European visitors often described them primarily as ornamental monuments showcasing local craftsmanship, disregarding their functional design. However, these structures actually served crucial utilitarian purposes in arid regions, functioning as public water reservoirs, social gathering spaces, and microclimate regulators. To achieve this thermal regulation, builders constructed deep, shaded galleries that trapped dense, cold air while shielding the water from direct sunlight. By integrating structural engineering with community utility, stepwells represented a highly sophisticated vernacular response to extreme seasonal climates.

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

Read the passage and fill in the blank with the transition word or phrase that best completes the passage by establishing a logical relationship.

Although the team of marine biologists faced numerous equipment failures that threatened to disrupt the deep-sea expedition, ______ managed to collect several previously unknown specimens of bioluminescent jellyfish from the ocean floor.

Which choice completes the text so that it conforms to the conventions of Standard English?

A commercial drone descends from a mapping mission at a constant rate. The altitude of the drone, $A$, in meters, $t$ seconds after it begins its descent is modeled by the equation $A = -4.5t + 360$. The graph of this equation in the $tA$-plane is shown below.

Which of the following is the best interpretation of the $t$-intercept of the graph in this context?

The graph of a third-degree polynomial function $f$ in the $xy$-plane has $x$-intercepts at $(2, 0)$, $(-1, 0)$, and $(k, 0)$. The $y$-intercept of the graph of $f$ is $(0, 12)$. If $f(3) = -48$, what is the value of $k$?

For decades, agricultural scientists assumed that the primary benefit of flooding rice paddies was to provide the crops with constant hydration. Recent field trials, ______ have shown that rice plants can grow equally well in moist but unflooded soil, suggesting that the practice of flooding is actually more useful for suppressing weeds than for watering the crops.

Which choice completes the text with the most logical transition?

While researching ancient Martian climate patterns, a student takes the following notes:
* In 2023, geologist William Rapin and his team analyzed polygonal mud cracks in Mars's Gale Crater using NASA's Curiosity rover.
* The cracks, dating to 3.6 billion years ago, exhibit geometric patterns that only form under repeated cycles of wetting and drying.
* On Earth, seasonal wet-dry cycles facilitate prebiotic chemical reactions that are crucial for the emergence of life.
* The team concluded that these mud cracks represent the first direct evidence that ancient Mars experienced seasonal, Earth-like climate cycles.

The student wants to summarize the study's findings. Which choice most effectively uses information from the given notes to accomplish this goal?

In architectural history, researchers have noted that the ancient Romans utilized pozzolanic ash to create a highly durable form of concrete that could set underwater. _______, builders in ancient Maya civilization incorporated local volcanic ash into their mortar recipes, achieving a comparable resistance to moisture and weathering.

Which choice completes the passage with the most logical transition?

In the early days of modern environmental policy, theorists often argued that ecological preservation and industrial development were fundamentally incompatible, suggesting that progress in one domain inevitably came at the expense of the other. However, contemporary sustainable development models demonstrate that a nation does not need to ______ its long-term economic growth in order to effectively safeguard its natural resources.

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

The giant sequoia tree, which grows naturally only on the western slopes of California's Sierra Nevada mountains, relies on wildfire to clear the forest floor so that ______ seeds can germinate in the nutrient-rich soil.

Which choice completes the text so that it conforms to the conventions of Standard English?

During the Byzantine Empire, mosaicists crafted stunning wall decorations using tesserae—small, hand-cut pieces of glass, stone, or ceramic. To maximize the reflective quality of these mosaics, artisans did not press the tesserae flat into the damp plaster. Instead, they set the pieces at slight, irregular angles. This uneven mounting allowed the individual tesserae to catch and reflect candlelight and daylight from various viewpoints, creating a shimmering, dynamic effect that shifted as viewers walked through the cathedral. Gold tesserae, in particular, were created by sandwiching a thin layer of gold leaf between two layers of clear glass, protecting the precious metal from tarnishing.

According to the text, which statement is true about the gold tesserae used in Byzantine mosaics?

In the field of historic architecture, the structural integrity of ancient vaulted ceilings remains a primary concern for conservationists. In particular, the meticulous restoration of timber-framed cathedrals, which frequently includes the reinforcement of decaying joists with modern steel brackets, ______ that traditional craftsmanship can be successfully integrated with contemporary engineering principles to preserve heritage sites.

Which choice completes the text so that it conforms to the conventions of Standard English?

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

Lichenometry is a geomorphic dating technique that uses the growth rate of lichens to determine the age of exposed rock surfaces, particularly in glacial environments. Because lichen growth is highly sensitive to local microclimatic conditions such as moisture and sunlight, researchers must establish a precise local growth curve for each target species. To construct this curve, scientists measure lichens on surfaces of known historical ages, such as gravestones or dated bridge abutments. By establishing this baseline, researchers can then estimate the exposure age of undated glacial moraines with greater confidence, thereby reconstructing past glacial retreat patterns with decadal resolution.

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

While conducting research on historical artifacts, a student took the following notes:
- The Rosetta Stone is a dark granodiorite slab discovered in Egypt.
- It contains a royal decree issued in Memphis in $196$ BCE on behalf of King Ptolemy V.
- In July $1799$, French soldier Pierre-François Bouchard uncovered the stone near Rashid during the Napoleonic campaign.
- The decree is inscribed in three scripts: Ancient Egyptian hieroglyphs, Demotic script, and Ancient Greek.
- Scholar Jean-François Champollion deciphered the hieroglyphs in $1822$ using the Greek text as a guide.

The student wants to write a statement that emphasizes the year the decree on the Rosetta Stone was issued and the year the stone was rediscovered. Complete the student's statement by filling in the blanks.