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18 Mar 2020, 22:36
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Difficulty:
45%
(medium)
Question Stats:
64% (01:41) correct
36%
(02:11)
wrong
based on 545
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Woodsville's bear population has been declining in recent years, primarily because of hunting. Bears prey heavily on a species of freshwater fish that is highly valued as food by the residents of Woodsville, who had hoped that the decline in the bear population would lead to an increase in the number of these fish available for human consumption. Yet the population of this fish species has also declined, even though the annual number caught for human consumption has not increased.
Which of the following, if true, most helps to explain the decline in the population of the fish species?
Which of the following, if true, most helps to explain the decline in the population of the fish species?
- (A) Over the last few years, Woodsville's commercial fishing enterprises have increased the number of fishing boats they use.
(B) During Woodsville's dry season, ditches dug by bears remain filled with water long enough to provide a safe place for the eggs of this fish species to hatch.
(C) Many Woodsvilleers who hunt bears do so because of the high market price of bearskins, not because of the threat bears pose to the fish population.
(D) The decline in the bear population has meant that fishers can work in some parts of lakes and rivers that were formerly too dangerous.
(E) A wild animal epidemic that could also affect bears has been raging in several neighboring counties of Woodsville.
shameekv1989
GMAT 3: 720 Q50 V38
Posts: 820
21 Mar 2020, 06:03
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BenCrackVerbal
We have to explain both the incidences
i) bear population decreasing
ii) fish population decreasing
It was expected that with bear population decreasing the population of fish species should have increased. But they are declining as well.
C and E doesn't affect fish populations so OUT.
A and D doesn't affect the fish population available for the human consumption. Even if the fishing boats are increased or number of fishers increase if the fish species population remained high would mean these fishers and boats will catch them and provide it to the residents for human consumption.
B says that when bear usually dig a ditch in which water starts accumulating and these fish species lay their eggs which hatch in them thereby increasing their population.
But now that bear population is decreasing the number of such ditches would decrease which would mean that the reason for the increase in fish populations is eliminated. And therefore the fishers and boats will just catch whatever is remaining and thus the fish population is decreasing.
22 Mar 2020, 00:50
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C and E doesn't affect fish populations so OUT.
A and D doesn't affect the fish population available for the human consumption. Even if the fishing boats are increased or number of fishers increase if the fish species population remained high would mean these fishers and boats will catch them and provide it to the residents for human consumption. - Not necessarily. Its clearly mentioned "Woodsville's commercial fishing enterprises".
Still not able to rule out why A is incorrect !
A and D doesn't affect the fish population available for the human consumption. Even if the fishing boats are increased or number of fishers increase if the fish species population remained high would mean these fishers and boats will catch them and provide it to the residents for human consumption. - Not necessarily. Its clearly mentioned "Woodsville's commercial fishing enterprises".
Still not able to rule out why A is incorrect !
