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

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Intern
Joined: 02 Apr 2007
Posts: 28
Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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06 Jun 2007, 01:41
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55% (hard)

Question Stats:

60% (01:34) correct 40% (01:47) wrong based on 877 sessions

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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
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Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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03 Jul 2010, 10:05
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4
Hey All,

I get asked by PM to take this one on, so here I am. How goes it?

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.

This question is about parallelism versus modifiers. We don't really want any modifiers here, so we have to get rid of answer choices that try to spin it that way.

A. to be huge reservoirs of energy, possibly causing sea floor instability, and
PROBLEM: Commas set off lists or modifiers. If it's a list, it's already unparallel (to be huge, causing, significant are not parallel). Modifier doesn't make sense either, however, as "causing" would be modifying the previous clauses. The fact that the hydrates may be reservoirs of energy is not causing sea floor instability, so that's out.

B. to be huge reservoirs of energy, possibly causing sea floor instability, and even as
PROBLEM: Same as above on every level.

C. as huge reservoirs of energy, possibly causing sea floor instability, and
PROBLEM: Same as above.

D. as huge reservoirs of energy, and the possible cause of sea floor instability,
PROBLEM: You only use COMMA followed by "and" at the end of a list of more than three things, not just two. Also, now the final section has become an appositive modifier. This is because the list MUST have ended after the "and", so the comma must be setting off a modifier. Because it's just a noun at the end, it could only be a noun modifying a noun ("Thomas Jefferson, our nation's third president, was awesome."). Obviously, the "instability" is not a "significant contributor to global warming"

E. as huge reservoirs of energy, as possible causes of sea floor instability, and even as
ANSWER: Look at the lovely parallelism "as, as, as", plus it finally makes sense!

Hope that helps!

-t
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##### General Discussion
CEO
Joined: 17 May 2007
Posts: 2876
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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06 Jun 2007, 03:47
I think its E, because it sounds the most parallel. However sentence correction is my Achilles heel....
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Joined: 04 Jun 2007
Posts: 347
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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06 Jun 2007, 13:16
I was between B & E but go with E because B's 'to be....and even as' doesn't seem right....
Intern
Joined: 02 Apr 2007
Posts: 40
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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06 Jun 2007, 14:17
the question is about gas hydrates potential as A, as B and as C. the best construction is the parallel construction choice E.
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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06 Jun 2007, 17:15
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 not ||. WRONG
B.to be huge reservoirs of energy, possibly causing sea floor instability, and even as 'not || WRONG'
C.as huge reservoirs of energy, possibly causing sea floor instability, and ' Potential as possibly causing instablity?... WRONG'
D.as huge reservoirs of energy, and the possible cause of sea floor instability, 'not ||, as X, and Y, Z' WRONG
E.as huge reservoirs of energy, as possible causes of sea floor instability, and even as
'as X, as Y, and even as Z, ||, Potential as possible causes for instablity.' CORRCT

E it is.
Intern
Joined: 02 Apr 2007
Posts: 28
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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07 Jun 2007, 00:18
leeye84 wrote:
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 not ||. WRONG
B.to be huge reservoirs of energy, possibly causing sea floor instability, and even as 'not || WRONG'
C.as huge reservoirs of energy, possibly causing sea floor instability, and ' Potential as possibly causing instablity?... WRONG'
D.as huge reservoirs of energy, and the possible cause of sea floor instability, 'not ||, as X, and Y, Z' WRONG
E.as huge reservoirs of energy, as possible causes of sea floor instability, and even as
'as X, as Y, and even as Z, ||, Potential as possible causes for instablity.' CORRCT

E it is.

Yes. It should be E. But OA given says "A" which, I believe, doesn't make sense at all!
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Posts: 495
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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08 Jun 2007, 14:10
I chose "A."

I see your decision to go with "E," based on parellism, but first that parallelism has to be idiomatic: "...being studied for their potential as...". When you put it back in the sentence, "potential as" does not sound as good as "potential to be." Instead, "A" correctly uses the idiom, "...being studied for their potential to be...". It also has correct parallelism, "...to be [blank]...and [blank]". If you take out the modifier, "possibly...instability," it makes more sense. The modifier is there to throw you off.

Despite the above reasons, it cannot be "B" because adding "even" in there is unnecessary. Just plug the answer choice back in the stem to make sure it flows.
Director
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Posts: 806
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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08 Jun 2007, 21:11
Although the idiom is 'potential to' but E makes more sense in this case because of ||ism.
In A it is not clear what 'possibly causing' refers to reservoirs or gas hydrates.
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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14 Dec 2008, 06:29
1
vivektripathi 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

Potential to be ~ / as ~ both seem ok. // Structure.
E seems to be the best choice.
Director
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Posts: 755
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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22 Dec 2008, 11:40
Correct idiom is "for x to be y", and choice B isnt parallel, thus A.

Any one can confirm this idiom? I searched up and right and couldn't find it though. But I think it is the correct way of using it.
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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23 Dec 2008, 00:02
billyjeans wrote:
Correct idiom is "for x to be y", and choice B isnt parallel, thus A.

Any one can confirm this idiom? I searched up and right and couldn't find it though. But I think it is the correct way of using it.

I think "potential to do something", not for x to be y
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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30 Dec 2008, 07:24
going by parallelism...its E

does it sounds okay?
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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20 Jun 2010, 06:04
Even I marked E for ||sm but the OA is A :O
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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20 Jun 2010, 06:32
[quote="ykaiim"]Even I marked E for ||sm but the OA is A :O[/quoGas 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

I go with A ....
however my reasoning is slightly different ..
I reckon potential as is not the correct idiom ..
e.g X has the potential to score 750.
hence I narrowed down to A or B ....
In B , there is no need for even as
Director
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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20 Jun 2010, 06:38
I have never seen "potential as"
potential to is correct.

A is parallel.
VP
Joined: 17 Feb 2010
Posts: 1221
Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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02 Jul 2010, 08:23
I found the below article from which the sentence is extracted and the article itself is written with option E.

http://findarticles.com/p/articles/mi_m ... _19493094/

Quote:
gas hydrates--chemical compounds that are increasingly being studied for their potential as huge reservoirs of energy, as possible causes of sea floor instability, and even as significant contributors to global warming

can someone explain what is the correct option...A or E?
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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03 Jul 2010, 12:06
Thank you Tommy. It certainly helps.
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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03 Jul 2010, 22:58
Tommy
Sorry I have to disagree. PROBLEM: You only use COMMA followed by "and" at the end of a list of more than three things, not just two. -----> D is wrong since the list has to be similar.
"huge reservoirs" is plural, so other items in the list have to be plural (technically)

D. as huge reservoirs of energy, and the possible cause of sea floor instability, ---> should be "causes" not "cause"

Pls correct me, if I'm wrong.

TommyWallach wrote:
D. as huge reservoirs of energy, and the possible cause of sea floor instability,
PROBLEM: You only use COMMA followed by "and" at the end of a list of more than three things, not just two. Also, now the final section has become an appositive modifier. This is because the list MUST have ended after the "and", so the comma must be setting off a modifier. Because it's just a noun at the end, it could only be a noun modifying a noun ("Thomas Jefferson, our nation's third president, was awesome."). Obviously, the "instability" is not a "significant contributor to global warming"
-t
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Re: Gas hydrates, chemical compounds of water and natural gas,  [#permalink]

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03 Jul 2010, 23:41
Hey Nusma,

We don't disagree. You just hit on ANOTHER reason why D is problematic. But my reasons are both legitimate, and in the end, more grammatically central than the parallelism issue, because we do sometimes parallel a singular and a plural: "I have three cookies and a glass of orange juice." OR "They are terrible musicians and a lousy comedy team."

Hope that makes sense!

-t
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Re: Gas hydrates, chemical compounds of water and natural gas, &nbs [#permalink] 03 Jul 2010, 23:41

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