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# By sucking sap from the young twigs of the hemlock tree,

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Intern
Joined: 28 Sep 2017
Posts: 2
Re: By sucking sap from the young twigs of the hemlock tree, [#permalink]

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28 Sep 2017, 15:03
ng2 wrote:
Hello amanrrr,
Since you are just starting to prepare, i would suggest to go through some basics first before randomly jumping into questions.

As far as your this question is concerned.
direct ing form will modify the noun preceding it where a , with ing verb form will modify the entire clause preceding it.
Now try to solve the question and see if you can find the answer.
Hope it helps.

Hi ng2,great explanation thanks for your help.
Yeah i think i shall go through the basics first.
Can you suggest some good material for SC.
Intern
Joined: 03 Jul 2017
Posts: 27
Location: India
GMAT 1: 700 Q48 V42
GPA: 3.85
WE: Operations (Consumer Electronics)
Re: By sucking sap from the young twigs of the hemlock tree, [#permalink]

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28 Sep 2017, 15:05
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amanrrr wrote:
ng2 wrote:
Hello amanrrr,
Since you are just starting to prepare, i would suggest to go through some basics first before randomly jumping into questions.

As far as your this question is concerned.
direct ing form will modify the noun preceding it where a , with ing verb form will modify the entire clause preceding it.
Now try to solve the question and see if you can find the answer.
Hope it helps.

Hi ng2,great explanation thanks for your help.
Yeah i think i shall go through the basics first.
Can you suggest some good material for SC.

Don't do anything else as of now.
slowly you will get the hang of it.
Hope it helps.
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Status: Greatness begins beyond your comfort zone
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Re: By sucking sap from the young twigs of the hemlock tree, [#permalink]

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19 Nov 2017, 20:33
By sucking sap from the young twigs of the hemlock tree, tree growth is retarded by the woolly adelgid, causing needles to change color from deep green to grayish green and to drop prematurely.

A. tree growth is retarded by the woolly adelgid, causing needles to change color from deep green to grayish green and to drop - Modifier issue -- tree growth is not sucking sap
B. tree growth is retarded by the woolly adelgid, and this causes the color of needles to change from deep green to grayish green, and their dropping - same as A
C. the woolly adelgid retards tree growth, which causes needles to change color from deep green to grayish green, and dropping - incorrect usage of which to refer to growth
D. the woolly adelgid retards tree growth, causing needles to change color from deep green to grayish green and to drop - Correct
E. the woolly adelgid retards tree growth, and this causes the color of needles to change from deep green to grayish green, and the their dropping - Parallelism issue and usage of and changes meaning

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Director
Joined: 26 Aug 2016
Posts: 574
Location: India
Concentration: Strategy, Marketing
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GMAT 2: 700 Q50 V33
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Re: By sucking sap from the young twigs of the hemlock tree, [#permalink]

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19 Nov 2017, 20:36
Simple modifier. we need adelgid after comma. Because ita a cause and effect type sentence, we need to use ing modifier. So answer boils down to D.

Target gmat against the odds.
Intern
Joined: 25 Jul 2017
Posts: 22
Re: By sucking sap from the young twigs of the hemlock tree, [#permalink]

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27 Mar 2018, 23:55
POE1: the modifier “By sucking sap from the young twigs of the hemlock tree” after comma should immediately follow WHAT it modifies. We should ask the question is, "Who or what sucks sap from young twigs?" Here, it cannot modify “Tree Growth” as this cannot “suck sap from the young twigs”. –A & B Out.
POE2: Parallelism. Here, “The retarded tree growth” causes 2 things:
A. needles change color
B. needles drop prematurely.
In C: “needles to change colour” “and dropping” – Not Parallel.- out
In E: “needles to change” “and their dropping”- Not Parallel - out
the woolly adelgid retards tree growth, causing needles to change color from deep green to grayish green and to drop – Parallel.
Also Verbing (Causing) is correctly modifying the preceding clause “the woolly adelgid retards tree growth”.
Re: By sucking sap from the young twigs of the hemlock tree,   [#permalink] 27 Mar 2018, 23:55

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