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Whereas the use of synthetic fertilizers has greatly expanded agricult

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Re: Whereas the use of synthetic fertilizers has greatly expanded agricult  [#permalink]

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New post 08 Mar 2019, 21:46
sondenso wrote:
Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many parts of the world, an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers may accelerate soil structure deterioration and soil erosion.

(A) an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers - Correct Answer

(B) an increase in their use can create serious environmental problems like water pollution, and if substituted for more traditional fertilizers, it - Wrong use of "like" and "it" doesn't refer to synthetic fertilizers

(C) if these fertilizers are used increasingly, they can create serious environmental problems such as water pollution, and if used as substitutions for more traditional fertilizers, they - The second "they" can refer to "traditional fertilizer" or "synthetic fertilizers"

(D) the increased usage of these fertilizers can create serious environmental problems such as water pollution, while if substituted for more traditional fertilizers, this substitution - "This substitution" can't actually accelerate soil structure deterioration. Illogical

(E) the increased usage of these fertilizers can create serious environmental problems like water pollution, while their substitution for more traditional fertilizers - Wrong use of "like"
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Re: Whereas the use of synthetic fertilizers has greatly expanded agricult  [#permalink]

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New post 08 Mar 2019, 23:28
This is how I arrived at the correct answer. Feel free to point out errors in my understanding. Thanks.
sondenso wrote:
Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many parts of the world, an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers may accelerate soil structure deterioration and soil erosion.

(A) an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers
The pronoun 'their' correctly refers to synthetic fertilizers and the use of such as to introduce examples is correct by the GMAT SC rules. While 'and their substitution for more' sounds awkward, other options have more clearer errors.


(B) an increase in their use can create serious environmental problems like water pollution, and if substituted for more traditional fertilizers, it
The use of 'Like' to introduce examples makes this option incorrect. We need 'Such as' for this task.


(C) if these fertilizers are used increasingly, they can create serious environmental problems such as water pollution, and if used as substitutions for more traditional fertilizers, they The last phrase - 'they may accelerate soil structure deterioration' seems to be incorrectly suggesting that it is the fertilizers themselves that may accelerate deterioration of soil structure, whereas as per the original sentence it is their use that may accelerate deterioration...

(D) the increased usage of these fertilizers can create serious environmental problems such as water pollution, while if substituted for more traditional fertilizers, this substitution This use of 'this substitution' changes the intended meaning of the sentence as explained in Option C.

(E) the increased usage of these fertilizers can create serious environmental problems like water pollution, while their substitution for more traditional fertilizers
The use of 'Like' to introduce examples makes this option incorrect. We need 'Such as' for this task.

Correct Answer - Option A
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Re: Whereas the use of synthetic fertilizers has greatly expanded agricult  [#permalink]

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New post 09 Mar 2019, 00:56
choice C is wrong because 2 dependent clauses are posited togetther, the first clauses "whereas..." and the clause " if these fertilzers are used..."

another error in choice C is that
"these fertilizer can created problems...." is not logice. fertilizers cannot create problem but increase in their use do.

am i correct ?
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Re: Whereas the use of synthetic fertilizers has greatly expanded agricult   [#permalink] 09 Mar 2019, 00:56

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