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Question Stats:
67% (01:11) correct
33%
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wrong
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Artificial seaweed made of plastic has been placed on a section of
coast in order to reverse beach erosion. The inventor of the seaweed
has concluded that the recent buildup of sand on that section of
coast proves that the artificial seaweed reverse beach erosion.
Which of the following, if true, would most seriously weaken the inventor's
conclusion?
(A) The amount of recent sand buildup on that section of coast was
less than had been predicted on the basis of the results obtained in
controlled experiments.
(B) Because artificial seaweed would be buried eventually by
additional sand deposits on the coast, more artificial seaweed would
need to be put in place every four years.
(C) Artificial seaweed of another material which had been previously
developed by the inventor failed to add sand to coastline in past
trials.
(D) The amount of recent sand buildup on that section of coast is the
same as the amount of recent sand buildup on otherwise very similar
section of coast without artificial seaweed.
(E) The amount of recent sand buildup on that section of coast,
although considerable, is not yet enough to replace the amount lost
during storms on that section of coast in the last twenty years.
coast in order to reverse beach erosion. The inventor of the seaweed
has concluded that the recent buildup of sand on that section of
coast proves that the artificial seaweed reverse beach erosion.
Which of the following, if true, would most seriously weaken the inventor's
conclusion?
(A) The amount of recent sand buildup on that section of coast was
less than had been predicted on the basis of the results obtained in
controlled experiments.
(B) Because artificial seaweed would be buried eventually by
additional sand deposits on the coast, more artificial seaweed would
need to be put in place every four years.
(C) Artificial seaweed of another material which had been previously
developed by the inventor failed to add sand to coastline in past
trials.
(D) The amount of recent sand buildup on that section of coast is the
same as the amount of recent sand buildup on otherwise very similar
section of coast without artificial seaweed.
(E) The amount of recent sand buildup on that section of coast,
although considerable, is not yet enough to replace the amount lost
during storms on that section of coast in the last twenty years.
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