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GWD PREP2012
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The author of the passage refers to the "considerable overlap" (line 23) between continental drift theory and plate tectonics theory most probably in order to
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PREP2012
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A row of upright fan-shaped plates running down the spine provided the Stegosaurus dinosaur with an especially efficient solar heating and cooling system to allow them to move comfortably through different climatic regions.
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GWD PREP2012
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The author cites Hallam (line 42) on the ice ages primarily in order to
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The possible long-term health risks to airline personnel who repeatedly cross multiple time zones has been a concern since the first jet transports went into service in the 1950s.
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Perkins: According to an article I read, the woolly mammoth`s extinction in North America coincided with a migration of humans onto the continent 12,000 years ago, and stone spearheads from this period indicate that these people were hunters. But the author's contention that being hunted by humans contributed to the woolly mammoth`s extinction is surely wrong since, as paleontologists know, no spearheads have ever been found among the many mammoth bones that have been unearthed.Which of the following, if true, provides the strongest reason for discounting the evidence Perkins cites in arguing against the contention that being hunted by humans contributed to the North American extinction of woolly mammoths?
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PREP2012
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The author of the passage discusses the “essential presumptions” (see highlighted text) of The Origin of Continents and Oceans most in order to
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In a state of pure commercial competition, there would be a large number of producing firms, all unfettered by governmental regulations, all seeking to meet consumer needs and wants more successfully than each other.
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PREP2012
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A proposed change to federal income tax laws would eliminate deductions from taxable income for donations a taxpayer has made to charitable and educational institutions. If this change were adopted, wealthy individuals would no longer be permitted such deductions. Therefore, many charitable and educational institutions would have to reduce services, and some would have to close their doors.The argument above assumes which of the following?
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GWD PREP2012
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Certain politicians in the country of Birangi argue that a 50 percent tax on new automobiles would halt the rapid increase of automobiles on Birangi's roads and thereby slow the deterioration of Birangi's air quality. Although most experts agree that such a tax would result in fewer Birangians buying new vehicles and gradually reduce the number of automobiles on Birangi's roads, they contend that it would have little impact on Birangi's air-quality problem.Which of the following, if true in Birangi, would most strongly support the experts' contention about the effect of the proposed automobile tax on Birangi's air-quality problem?
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GWD PREP2012
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The primary purpose of the passage is to
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PREP2012
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In the English-speaking world Anton Chekhov is by far better known for his plays than for his short stories, but it was during his lifetime that Chekhov`s stories made him popular while his plays were given a more ambivalent reception, even by his fellow writers.
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GWD PREP2012
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It can be inferred from the passage that the occasional failure of some salmon to return to their natal streams in order to spawn provides a mechanism by which
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PREP2012
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Now generally regarded as a forgery, the Kensington Rune Stone, a 90-kilogram slab of inscribed rock discovered in Minnesota in 1898, was said to have recorded an encounter between Native Americans and Norse explorers in 1362 and thus was cited as evidence that Europeans explored North America in pre-Columbian times.
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PREP2012
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Surveys in Domorica indicate that only 10 percent of Domoricans in their twenties read a newspaper regularly, while more than half of all Domoricans over thirty read a newspaper regularly. Although Domoricans in their twenties constitute a large proportion of the population, newspaper publishers nonetheless predict that ten years from now, the percentage of Domoricans who regularly read a newspaper will probably be no lower than it is today.Which of the following, if true, provides the strongest grounds for the newspaper publishers` prediction?
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GWD PREP2012
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Which of the following most logically completes the passage?Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.
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GWD PREP2012
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According to the passage, human activity has had which of the following effects on salmon populations?
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GWD PREP2012
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In his experiments with gravity, Isaac Newton showed how the motion of each planet in the solar system results from the combined gravitational pull of the Sun and of all the other planets, each contributing according to their mass and distance from the others.
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GWD PREP2012
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In the late 1980's, the population of sea otters in the North Pacific Ocean began to decline. Of the two plausible explanations for the decline-increased predation by killer whales or disease-disease is the more likely. After all, a concurrent sharp decline in the populations of seals and sea lions was almost certainly caused by a pollution-related disease, which could have spread to sea otters, whereas the population of killer whales did not change noticeably.Which of the following, if true, most seriously weakens the reasoning?
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PREP2012
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The author's argument that increased straying can “lower the overall fitness of subsequent generations” (see highlighted text) is based on which of the following assumptions?
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PREP2012
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The region of Norden is comprised of five sovereign states, each of which recognize a stronger cultural bond to their Nordic neighbors than to any other cultural grouping.
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