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Which of the following, if true, most weakens the argument?
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One way to assess This is the American Earth, a collection of photographs selected and arranged by Nancy Newhall, is to apply Newhall's own criteria for judging photographic art. Does this photographic essay achieve results impossible in other media? By contrasting the small with the vast--for example, placing a photo of a rock pool next to one of a spiral galaxy--Newhall exploits the camera's ability to manipulate the size of an object, thereby challenging viewers to question their conventional concepts of size. However, a similar result could be achieved in the medium of painting.
Does the work bear its creator's imprint, and does it draw viewers' interest even after repeated viewings, Newhall's second and third criteria? Indeed, Newhall's work bears her unmistakable imprint in the juxtaposition of the photos and in the rhythmic prose accompanying them, but the individual viewer must decide whether Newhall's work evokes, as it did for this reviewer, new experiences upon subsequent viewings.
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According to the passage, which of the following is a way in which This is the American Earth satisfies Newhall's criteria for judging photographic art?
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The primary purpose of the passage is to
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Which of the following is an assumption on which the argument depends?
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In 1995, after an absence of nearly 70 years, wolves were reintroduced into Yellowstone National Park. During the wolf-free era, heavy browsing of aspen trees by elk populations spelled doom not only fro trees themselves but for a host of other creatures dependent on them, such as beavers, whose population in Yellowstone crashed after wolves were removed. Without beavers to create ponds, wetland ecosystems--aquatic plants, amphibians, birds--were devastated. When wolves returned, grazers and browsers resumed normal patterns of behaviors, preferring safer, open areas over the dense cover and streamsides where carnivores can lurk. Keeping elk wary and on the move, wolves gave aspen and other young trees the opportunity to grow and become reestablished.
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The passage asserts which of the following about beaver populations in Yellowstone?
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