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The use of biofuels manufactured from crops such as corn and sugar can

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The use of biofuels manufactured from crops such as corn and sugar can [#permalink]

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New post 25 Jan 2015, 12:38
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81% (01:14) correct 19% (01:22) wrong based on 139 sessions

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The use of biofuels manufactured from crops such as corn and sugar cane to replace petroleum products should benefit the environment. This is due to a reduction in fossil fuel use and in greenhouse gas emissions. At first, this technology seemed to have the desired effect. However, the United Nations recently determined that the use of biofuels threatens the environment.

If true, which of the following statements would best explain the apparent discrepancy described above?
(A)The price of oil has fluctuated considerably over the five years since biofuels began to become more widely used.
(B) Petroleum products are still cheaper to extract than biofuels are to produce
(C) Biofuels are currently produced from crops that would otherwise be used as food, creating potential shortages in land, water, and food in many countries worldwide.
(D) The amount of greenhouses gases being pumped into the atmosphere has steadily increased over the past two decades and is projected to further increase in the future.
(E) Prior to the use of biofuels, other alternatives, such as hydrogen power, were thought to be more promising.
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Re: The use of biofuels manufactured from crops such as corn and sugar can [#permalink]

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New post 26 Mar 2017, 03:58
Can someone explain how , option C accounts proves that biofuels threatens the environment . Thanks.
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Re: The use of biofuels manufactured from crops such as corn and sugar can [#permalink]

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New post 27 Mar 2017, 04:34
Can someone explain how , option C accounts proves that biofuels threatens the environment . Thanks.
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Re: The use of biofuels manufactured from crops such as corn and sugar can [#permalink]

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New post 27 Mar 2017, 09:32
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I wouldn't lose too much sleep over this particular example. This isn't an official GMAT question, and it's extraordinarily difficult for test-prep companies to perfectly copy the style of real GMAT questions. After all, the GMAT spends somewhere in the neighborhood of $1500-$3000 to develop each question. Even the very best test-prep companies can't compete with that.

In this case, (C) requires you to make a leap: the writer of the question apparently wants you to think that "potential shortages in land, water, and food" constitutes a "threat to the environment." We can debate whether that's reasonable or not, and that's exactly the problem with the question. But the bottom line is that this isn't an official question -- and official questions won't leave much room for debate.

I hope this helps!
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Re: The use of biofuels manufactured from crops such as corn and sugar can [#permalink]

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New post 27 Mar 2017, 11:12
GMATNinja wrote:
I wouldn't lose too much sleep over this particular example. This isn't an official GMAT question, and it's extraordinarily difficult for test-prep companies to perfectly copy the style of real GMAT questions. After all, the GMAT spends somewhere in the neighborhood of $1500-$3000 to develop each question. Even the very best test-prep companies can't compete with that.

In this case, (C) requires you to make a leap: the writer of the question apparently wants you to think that "potential shortages in land, water, and food" constitutes a "threat to the environment." We can debate whether that's reasonable or not, and that's exactly the problem with the question. But the bottom line is that this isn't an official question -- and official questions won't leave much room for debate.

I hope this helps!

Thank you for your reassurance , I was thinking along similar lines too.

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Re: The use of biofuels manufactured from crops such as corn and sugar can   [#permalink] 27 Mar 2017, 11:12
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The use of biofuels manufactured from crops such as corn and sugar can

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