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Wild cheetahs live in the African grasslands. Previous

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Intern
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Joined: 03 Apr 2013
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Concentration: Leadership, General Management
GMAT 1: 610 Q47 V27
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Re: Wild cheetahs live in the African grasslands [#permalink]

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New post 26 Mar 2016, 21:18
fortunately, I was able to answer it in first attempt.

Many people are arguing that answer choices should be more specific and option D can be improved. But i think it doesn't matter , we are given with 5 options and there is not 'none of the above' choice... so our task is to find the best choice , not the best answer.
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Re: Wild cheetahs live in the African grasslands. Previous [#permalink]

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New post 16 Aug 2017, 22:09
noboru wrote:
Wild cheetahs live in the African grasslands. Previous estimates of the size that the wild cheetah population must be in order for these animals to survive a natural disaster in the African grasslands region were too small, and the current population barely meets the previous estimates. At present, however, there is not enough African grassland to support a wild cheetah population larger than the current population.
The statements above, if true, most strongly support which one of the following conclusions?
(A) Previous estimates of the size of the existing wild cheetah population were inaccurate.
(B) The cheetah’s natural habitat is decreasing in size at a faster rate than is the size of the wild cheetah population.
(C) The principal threat to the endangered wild cheetah population is neither pollution nor hunting, but a natural disaster.
(D) In the short term, the wild cheetah population will be incapable of surviving a natural disaster in the African grasslands.
(E) In regions where land is suitable for cheetah habitation, more natural disasters are expected to occur during the next decade than occurred during the past decade.


What this question is basically saying is that if scientists claim " the cheetah population must be 100 in order for them to survive a natural disaster" when in reality it must be 1000 for them to survive a natural disaster, then if the population is somewhat close to the former estimate "100" like 99 cheetahs or 98 then it wouldn't survive a natural disaster. "barely meets previous estimates" means there would be like 98 or 99 cheetahs.

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Re: Wild cheetahs live in the African grasslands. Previous [#permalink]

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New post 17 Aug 2017, 04:52
Is my reasoning faulty? The estimated population size for wild cheetah to survive natural disaster was small. And current population is below the estimate, and African grassland cannot sustain even that.
First. Congrats all the existing wild cheetahs. This is great news for you. Earlier you had your competition. Now you are few and free. Whoa!
However, what is the African Grassland has to do with that? May be to accommodate the Cheetahs. Wait! So do you mean that earlier the African Grassland was able to accommodate the estimated population, and now the current population is even low, and the Grassland is not even able to support that.
Therefore, the grassland must be shrinking, that too at a faster rate.

D says natural disaster in the short term. However, what has the natural disaster to do with the size of grassland? Why was natural disaster mentioned in the first place?
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Re: Wild cheetahs live in the African grasslands. Previous [#permalink]

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New post 18 Aug 2017, 03:20
talismaaniac wrote:
Is my reasoning faulty? The estimated population size for wild cheetah to survive natural disaster was small. And current population is below the estimate, and African grassland cannot sustain even that.
First. Congrats all the existing wild cheetahs. This is great news for you. Earlier you had your competition. Now you are few and free. Whoa!
However, what is the African Grassland has to do with that? May be to accommodate the Cheetahs. Wait! So do you mean that earlier the African Grassland was able to accommodate the estimated population, and now the current population is even low, and the Grassland is not even able to support that.
Therefore, the grassland must be shrinking, that too at a faster rate.

D says natural disaster in the short term. However, what has the natural disaster to do with the size of grassland? Why was natural disaster mentioned in the first place?


I think you haven't understood the argument properly.

Wild cheetahs live in the African grasslands. Previous estimates of the size that the wild cheetah population must be in order for these animals to survive a natural disaster in the African grasslands region were too small,

The previous estimates were too small. That means they were not accurate. The actual value of "the actual size that the wild cheetah population must be in order for these animals to survive a natural disaster in the African grasslands region" should be greater.

and the current population barely meets the previous estimates,

The current population is less than the pervious estimates.

At present, however, there is not enough African grassland to support a wild cheetah population larger than the current population.
But the grassland can support only current population, not larger.

So what will happen if there is a natural disaster in the near future?

The cheetah population is much less than that required to survive a natural disaster. So it will probably not survive.
Hence answer is (D)

What is the relevance of "short term"? We can't say the same thing about long term (because the cheetah population might grow).
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Re: Wild cheetahs live in the African grasslands. Previous   [#permalink] 18 Aug 2017, 03:20

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