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# Gas hydrates, chemical compounds of water and natural gas,

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BSchool Forum Moderator
Joined: 28 Mar 2017
Posts: 1104
Location: India
GMAT 1: 730 Q49 V41
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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02 Nov 2017, 11:36
Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.

A.to be huge reservoirs of energy, possibly causing sea floor instability, and -list is not parallel
B.to be huge reservoirs of energy, possibly causing sea floor instability, and even as -list is not parallel
C.as huge reservoirs of energy, possibly causing sea floor instability, and -list is not parallel
D.as huge reservoirs of energy, and the possible cause of sea floor instability, -list is not parallel
E.as huge reservoirs of energy, as possible causes of sea floor instability, and even as -Correct
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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23 Jan 2018, 08:47
IMO E makes more sense than A but changes the intended meaning of the sentence.
In A it seems that the fact that they are huge reservoirs of energy causes the oceans instability while in E it seems that they cause this instability alone.
This is why I chose A, even if E makes more sense to me regarding the parallelism.
Is my reasoning so flawed?
Manager
Joined: 08 Nov 2015
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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24 Jan 2018, 01:53
jho1 wrote:
Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.

A.to be huge reservoirs of energy, possibly causing sea floor instability, and
B.to be huge reservoirs of energy, possibly causing sea floor instability, and even as
C.as huge reservoirs of energy, possibly causing sea floor instability, and
D.as huge reservoirs of energy, and the possible cause of sea floor instability,
E.as huge reservoirs of energy, as possible causes of sea floor instability, and even as

The correct answer here should be E. "As + clause.." parallelism. Gas hydrates is being studied for 3 different purposes. 1. as huge reservoirs of Energy, 2. As possible cause of sea floor instability and 3. as significant contributors to global warming.
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Joined: 21 Jul 2012
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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11 Apr 2018, 08:03
Though E seems to be the best among lot, doesn't ëven as change the meaning?
Intern
Joined: 14 Jul 2014
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Concentration: Social Entrepreneurship, Strategy
GMAT Date: 04-18-2015
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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07 Aug 2018, 12:03
GMATNinja if you could explain this in entirety ...
Re: Gas hydrates, chemical compounds of water and natural gas, &nbs [#permalink] 07 Aug 2018, 12:03

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