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Re: While human migrations historically have led to a giant [#permalink]
Skywalker18 wrote:
While human migrations historically have led to a giant reduction in the number of animals used as food by humans such as deer and cat or animals that attack humans, during times of need humans likely also killed large herbivores such as the Woolly Mammoth for food. The large reduction in the population of European Woolly Mammoth during 8000 BC, a period of recorded famine in Europe, is evidence of such activity.

Which of the following if true strengthens the viewpoint that the reduction in the population of European Woolly Mammoth was caused by the hunting by humans?

A. The population of the giant hippopotamus, another large herbivore also declined during the same period.
B. The number of fig trees, European Woolly Mammoth's primary food source, significantly increased after the decline of the herbivore.
C. The population of large Cape Lion, European Woolly Mammoth's primary predator, also decreased during 8000 BC.
D. The few European Woolly Mammoths that survived the famine of 8000 BC lived in high altitudes rarely habituated by humans.
E. Deer population in Europe during the famine of 8000 BC declined tremendously because of lack of food.


Conclusion- During 8000 BC, large reduction in the population of WM is because of human hunting for food.
Premise- General info- human migration leads to giant reduction in number of animals used as food.
WM is used as food by humans.
A- out of scope, does not give any info about WM.
B- Yes it tells WM is reduced but reason is human not clear.-Out
C- Predator of WM is decreased- doesn't connect humans with WM- Out
D- Okay the survived WM is the ones who didn't lived near human settlement- make sense if the survived one are the ones lived away from human settlements then the reason they survived is not killed by humans.
E - Talk about deer -straight out

Answer is D
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Re: While human migrations historically have led to a giant [#permalink]
Conclusion- hunting by human caused decline in EWM population
If cause is removed thn effect is also removed will clearly be the strengthner
D clearly fits

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While human migrations historically have led to a giant [#permalink]
We have been asked to prove that there's a strong link between human activity and Mammoth population decline. So, the right answer choice will directly establish the link between the two.

A. The population of the giant hippopotamus, another large herbivore also declined during the same period.
- Does this prove that the Mammoth population also declined? it does not. Hence, eliminate (A)

B. The number of fig trees, European Woolly Mammoth's primary food source, significantly increased after the decline of the herbivore. - does not establish the direct link between human activity and Mammoth population decline. Hence, eliminate (B)

C. The population of large Cape Lion, European Woolly Mammoth's primary predator, also decreased during 8000 BC.
- does not establish the direct link between human activity and Mammoth population decline. hence, eliminate (C)

D. The few European Woolly Mammoths that survived the famine of 8000 BC lived in high altitudes rarely habituated by humans. - Okay. This statement indicates that those few Mammoths that did survive the famine lived in the habitats unoccupied by humans. So, we can make an inference that all those mammoths that did not survive the famine did indeed live in areas that were much easier for humans to access. This indicates that human activities did have some important role in the population decline of mammoths. Hence, (D) is the right answer.

E. Deer population in Europe during the famine of 8000 BC declined tremendously because of lack of food. - (E) would weaken the argument, not strengthen it. Hence, eliminate (E).
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Re: While human migrations historically have led to a giant [#permalink]
Hello from the GMAT Club VerbalBot!

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Re: While human migrations historically have led to a giant [#permalink]
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