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# *700* Dried grass clippings mixed into garden

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MBA Section Director
Joined: 19 Mar 2012
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Location: India
GMAT 1: 760 Q50 V42
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*700* Dried grass clippings mixed into garden [#permalink]

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17 Apr 2015, 10:24
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5% (low)

Question Stats:

84% (01:01) correct 16% (01:05) wrong based on 228 sessions

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Dried grass clippings mixed into garden soil gradually decompose, providing nutrients for beneficial soil bacteria. This results in better-than-average plant growth. Yet mixing fresh grass clippings into garden soil usually causes poorer than-average plant growth.

Which one of the following, if true, most helps to explain the difference in plant growth described above?

(A) The number of beneficial soil bacteria increases whenever any kind of plant material is mixed into garden soil.

(B) Nutrients released by dried grass clippings are immediately available to beneficial soil bacteria.

(C) Some dried grass clippings retain nutrients originally derived from commercial lawn fertilizers, and thus provide additional enrichment to the soil.

(D) Fresh grass clippings mixed into soil decompose rapidly, generating high levels of heat that kill beneficial soil bacteria.

(E) When a mix of fresh and dried grass clippings is mixed into garden soil, plant growth often decreases.

Source: LSAT
[Reveal] Spoiler: OA

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Re: *700* Dried grass clippings mixed into garden [#permalink]

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18 Apr 2015, 00:13
Dried grass clippings mixed into garden soil gradually decompose, providing nutrients for beneficial soil bacteria.
This results in better-than-average plant growth.
Yet mixing fresh grass clippings into garden soil usually causes poorer than-average plant growth.

Which one of the following, if true, most helps to explain the difference in plant growth described above?

(A) The number of beneficial soil bacteria increases whenever any kind of plant material is mixed into garden soil.
(B) Nutrients released by dried grass clippings are immediately available to beneficial soil bacteria.
(C) Some dried grass clippings retain nutrients originally derived from commercial lawn fertilizers, and thus provide additional enrichment to the soil.
(D) Fresh grass clippings mixed into soil decompose rapidly, generating high levels of heat that kill beneficial soil bacteria.
(E) When a mix of fresh and dried grass clippings is mixed into garden soil, plant growth often decreases.
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Status: GMAT Date: 10/08/15
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Re: *700* Dried grass clippings mixed into garden [#permalink]

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18 Apr 2015, 01:49
souvik101990 wrote:
Dried grass clippings mixed into garden soil gradually decompose, providing nutrients for beneficial soil bacteria. This results in better-than-average plant growth. Yet mixing fresh grass clippings into garden soil usually causes poorer than-average plant growth.

Which one of the following, if true, most helps to explain the difference in plant growth described above?

(A) The number of beneficial soil bacteria increases whenever any kind of plant material is mixed into garden soil.

(B) Nutrients released by dried grass clippings are immediately available to beneficial soil bacteria.

(C) Some dried grass clippings retain nutrients originally derived from commercial lawn fertilizers, and thus provide additional enrichment to the soil.

(D) Fresh grass clippings mixed into soil decompose rapidly, generating high levels of heat that kill beneficial soil bacteria.

(E) When a mix of fresh and dried grass clippings is mixed into garden soil, plant growth often decreases.

Hi,

This was an easy one

The only option that 'explains the difference in plant growth' is D.

A and E - are irrelevant as they talk about benefits of plant material mixing and the Fresh grass+ dried grass mix. Both are not
B and C strengthen the reason to keep using dried grass but dont explain the reason for lack of growth with fresh grass.

So if we focus on the question stem and look for a direct answer, we will reach D.

Hope this approach is correct.

Thanks,
aimtoteach
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Re: *700* Dried grass clippings mixed into garden [#permalink]

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13 Dec 2017, 02:06
Dried grass clippings mixed into garden soil gradually decompose, providing nutrients for beneficial soil bacteria. This results in better-than-average plant growth. Yet mixing fresh grass clippings into garden soil usually causes poorer than-average plant growth.

Type -explain the situation
Pre-thinking -- Fresh grass clipping nullify the positive effect of dried grass clipping

(A) The number of beneficial soil bacteria increases whenever any kind of plant material is mixed into garden soil. -- Deepens the paradox

(B) Nutrients released by dried grass clippings are immediately available to beneficial soil bacteria. -- Irrelevant

(C) Some dried grass clippings retain nutrients originally derived from commercial lawn fertilizers, and thus provide additional enrichment to the soil.-- Irrelevant -- just provides a mechanism

(D) Fresh grass clippings mixed into soil decompose rapidly, generating high levels of heat that kill beneficial soil bacteria.-- Correct

(E) When a mix of fresh and dried grass clippings is mixed into garden soil, plant growth often decreases. -- We already know this

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Re: *700* Dried grass clippings mixed into garden   [#permalink] 13 Dec 2017, 02:06
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