Agricultural scientists have estimated that the annual loss : GMAT Sentence Correction (SC)
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# Agricultural scientists have estimated that the annual loss

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Agricultural scientists have estimated that the annual loss [#permalink]

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15 May 2012, 21:15
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37% (02:26) correct 63% (02:29) wrong based on 286 sessions

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Agricultural scientists have estimated that the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year.

(A) the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year
(B) the erosion of heavy rainfall and inadequate flood control causes a loss of arable land approaching two million acres per year
(C) erosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year
(D) an annual loss approaching two million acres of arable land per year results from results from erosion caused by heavy rainfall and unadequate flood controls
(E) annually a loss of arable land approaching two million acres is caused by erosion due to heavy rainfall and inadequate flood controls

Here is the link for this one, but still it is not clear.
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15 May 2012, 21:36
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Agricultural scientists have estimated that the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year.

(A) the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year
(B) the erosion of heavy rainfall and inadequate flood control causes a loss of arable land approaching two million acres per year
(C) erosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year
(D) an annual loss approaching two million acres of arable land per year results from results from erosion caused by heavy rainfall and unadequate flood controls
(E) annually a loss of arable land approaching two million acres is caused by erosion due to heavy rainfall and inadequate flood controls

Here is the link for this one, but still it is not clear.[/quote]

The sentence refers to loss of arable land and the key idiomatic structure is 'loss of'

A: the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year: loss by is an unidiomatic construction.
B: the erosion of heavy rainfall and inadequate flood: it it the erosion of heavy rainfall and inadequate flood or is it the erosion of arable land?
C: erosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year: structure is correct, verbs match in tense and form.
D: an annual loss approaching: unidiomatic construction again...
E: scientists have estimated that annually a loss: awkward construction for eg. scientists have estimated that a loss of... is better
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15 May 2012, 23:44
piyushksharma wrote:
Agricultural scientists have estimated that the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year.

(A) the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year
(B) the erosion of heavy rainfall and inadequate flood control causes a loss of arable land approaching two million acres per year
(C) erosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year
(D) an annual loss approaching two million acres of arable land per year results from results from erosion caused by heavy rainfall and unadequate flood controls
(E) annually a loss of arable land approaching two million acres is caused by erosion due to heavy rainfall and inadequate flood controls

Here is the link for this one, but still it is not clear.

C is correct because it correctly uses, the idiom "loss of" stating that the land has lost "quality".

Also in this sentence it correctly uses the Cause + Results in + Effect Idiom from MGMAT pg.179 Q.11 A

The erosion is caused by rainfall which results in a loss of "quality of the land and the effect is that it approaches two million acres per year.
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16 May 2012, 06:08
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Whenever we have the word annual in any a given text, the first thing we need to check is whether per year is also stated in the passage. The use of annual and per year in the same sentence is redundant. On that score alone, we can kick out choices A and D; B changes the meaning of the text significantly by saying that the loss is caused by rainfall rather than by erosion of arable land.

E has two problems, the first and the more important error is that it uses passive voice where it is more helpful to use an active voice. Secondly, note the structure of the sentence. Due to also means caused by; so in effect the choice says that the loss of arable land caused by erosion caused by heavy rainfall etc. This repetition is inelegant.

C on the other hand is forthright, active, and dynamic.

IMO, the passge doesn’t touch on the loss of quality of land due to erosion.
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Re: Agricultural scientists have estimated that the annual loss [#permalink]

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02 Mar 2014, 16:31
piyushksharma wrote:
Agricultural scientists have estimated that the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year.

(A) the annual loss by erosion of arable land caused by heavy rainfall and inadequate flood controls approaches two million acres per year
(B) the erosion of heavy rainfall and inadequate flood control causes a loss of arable land approaching two million acres per year
(C) erosion caused by heavy rainfall and inadequate flood controls results in a loss of arable land approaching two million acres per year
(D) an annual loss approaching two million acres of arable land per year results from results from erosion caused by heavy rainfall and unadequate flood controls
(E) annually a loss of arable land approaching two million acres is caused by erosion due to heavy rainfall and inadequate flood controls

Here is the link for this one, but still it is not clear.

Please correct answer choice D as it repeats 'results from' twice, generating distraction

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Re: Agricultural scientists have estimated that the annual loss [#permalink]

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28 Jul 2016, 13:25
Hello from the GMAT Club VerbalBot!

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Re: Agricultural scientists have estimated that the annual loss   [#permalink] 28 Jul 2016, 13:25
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