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# Sound can travel through water for enormous

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Re: Sound [#permalink]  19 Sep 2011, 00:23
+1 for C. Though 'its' is an ambiguous pronoun in C
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  19 Apr 2012, 03:48
In C, dissipating is present participle. Can someone explain how such usage is correct.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  21 Apr 2012, 02:23
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In C, dissipating is not a present participle. It is a gerund. You see from is a preposition. A preposition will always be followed a noun or a noun phrase , or a pronoun or a gerund
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  21 Apr 2012, 06:07
Economist wrote:
Set26-37

Sound can travel through water for enormous distances,
prevented from dissipating its acoustic energy as a result of
boundaries in the ocean created by water layers of different
temperatures and densities.
A. prevented from dissipating its acoustic energy as a
result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as
a result of
E preventing its acoustic energy from dissipating by

sound should be the subject after comma...so A B E are ignored...

so now that answer is between C & D

C: prevented from .... by... : this is perfect
D: prevented from being... as a result of... : wordy and wrong

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Re: Set26-37 Sound can travel through water for enormous [#permalink]  21 Apr 2012, 09:13
daagh wrote:
In C, dissipating is not a present participle. It is a gerund. You see from is a preposition. A preposition will always be followed a noun or a noun phrase , or a pronoun or a gerund

Thanks, unfortunately it didnt click even though i know the rule.
Why D is incorrect
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  21 Apr 2012, 10:03
Expert's post
In fact, my first split will be to get rid of the idiom ‘as a result of’ because it is wordy. That is the reason why we can safely eliminate A and D at the first instance.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  21 Apr 2012, 12:16
daagh wrote:
In fact, my first split will be to get rid of the idiom ‘as a result of’ because it is wordy. That is the reason why we can safely eliminate A and D at the first instance.

As a result of - shows cause and effect relationship. boundaries created ... cause, energy prevented...effect. Hence correct
being dissipated is one reason that D can be eliminated
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Re: Sound [#permalink]  31 Jul 2012, 13:37
Samwong wrote:
The OA is C
The source is Verbal Review 2nd Ed

I'm confused about the structure of the sentence. According to the explanation from the book, "prevented..." is a participial phrase modifying the noun "acoustic energy". Since there is no conjunction between "distances" and "its", is the second part of the sentence an appositive (noun phrase)? If the second part is an appositive, which noun is it modifying?

Main clause

"Sound can travel through water for enormous distances,
its acoustic energy prevented from dissipating by boundaries in the ocean created by water layers of different temperatures and densities."

I had to do some research on this one myself. There is no verb in the second part (missing "is"), so it is not a run-on sentence. Instead, the second phrase is modifying the entire clause. Google "absolute phrase" for construction and some examples. I have seen this maybe 2 other times on official GMAT questions, so I don't think that it is extremely important.
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Re: Sound [#permalink]  16 Aug 2012, 16:30
C it is, quite clearly..!
E is very tempting indeed, but if we focus on the meaning, C and D look good.
D is wordy, so C wins.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  04 Oct 2012, 10:03
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Hi,

how come you don't need a FANBOY or semicolon for OA C? are they not 2 independent clauses
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  04 Oct 2012, 16:54
ttb217 wrote:
Hi,

how come you don't need a FANBOY or semicolon for OA C? are they not 2 independent clauses

The second part is not a clause. What is the verb? Prevented is a past participle modifier as it is passive (acoustic energy is NOT doing the action of preventing - easy to see with the preposition from after prevented).

Also, see previous responses. I am not a grammar guru, but I believe this to be an absolute phrase. Google that to see its usage, but you will probably rarely encounter one.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  12 Sep 2013, 11:55
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Hi fameatop,

This is in response to your PM.

Let's analyze the structure of Choice C: Sound can travel through water for enormous distances, its acoustic energy prevented from dissipating by boundaries in the ocean created by water layers of different temperatures and densities.

There is no doubt that the portion before the comma is an Independent Clause with "Sound" as a Subject and "can travel" as a Verb.
Now let's look at the latter portion of the sentence.

its acoustic energy prevented from dissipating by boundaries in the ocean created by water layers of different temperatures and densities.

This structure is actually Noun + Noun Modifier that modifies the preceding clause.
Noun = its acoustic energy
Noun Modifier = prevented from dissipating...

What does this portions says? It says that its (sounds) acoustic energy prevented. Now does it make sense that the sound itself prevents its acoustic energy? No, it does. Now read further. "its acoustic energy prevented... by water layers of different temperatures and densities." Now, does this make sense? Yes, it does. This structure actually provided the characteristic of the acoustic energy in that it says that this acoustic energy is prevented from dissipating by water layers of different temperatures and densities.

In original Choice C, "prevented" CANNOT be a passive voice also because it is not preceded by a helping verb such as is/am/are/was/were etc. So, prevented here id just a verb-ed modifier, a Noun Modifier that modifies the preceding noun entity "its acoustic energy". Together this modified noun + noun modifier modifies the preceding clause by presenting the reason for the main action in the sentence.

Remember, we are talking about the CORRCT OFFICIAL answer choice. It cannot have a grave error of fragment.

Hope this helps.
Thanks.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  12 Sep 2013, 13:19
Expert's post
Just a quick question-

Had the sentence/any option been like this "Sound can travel through water for enormous distances and its acoustic energy is prevented from dissipating by...";then also it'd have been correct. Right?
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  04 Nov 2013, 01:47
its (Sound's) acoustic energy $prevented from dissipating by boundaries <<< this statement is in passive voice so why there is no verb such as was, is or been is present before prevented, in sentence refer where I have placed$ sign.

Kindly help to correct my reasoning, I think I am making mistake in relating passive voice concept to this question, please help to clarify.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  10 Nov 2013, 19:37
Economist wrote:
Set26-37

Sound can travel through water for enormous distances,
prevented from dissipating its acoustic energy as a result of
boundaries in the ocean created by water layers of different
temperatures and densities.
A. prevented from dissipating its acoustic energy as a
result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as
a result of
E preventing its acoustic energy from dissipating by

The OA is C as per the verbal review. Kindly take note of it.
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Re: Sound [#permalink]  10 Nov 2013, 19:53
Economist wrote:
OA is E.

Please Do NOT post the incorrect OA on the forum. Always double check before you give the answer and also read the forum rules before posting (given in my signature)
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  10 Nov 2013, 21:56
bagdbmba wrote:
Just a quick question-

Had the sentence/any option been like this "Sound can travel through water for enormous distances and its acoustic energy is prevented from dissipating by...";then also it'd have been correct. Right?

No it would not have been correct, because the conjunction "and" would have suggested that these are two "independent" facts; but if you really understand the meaning of the original sentence, there is a clear cause and effect. So, a conjunction "as" or "because", instead of "and" would be the right choice.
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Re: Set26-37 Sound can travel through water for enormous [#permalink]  10 Nov 2013, 21:59
PiyushK wrote:
its (Sound's) acoustic energy $prevented from dissipating by boundaries <<< this statement is in passive voice so why there is no verb such as was, is or been is present before prevented, in sentence refer where I have placed$ sign.

Kindly help to correct my reasoning, I think I am making mistake in relating passive voice concept to this question, please help to clarify.

"is" is "implied" where you have a \$. If the sentence had explicitly mentioned a "is", then this would have been wrong, since it would have been a run-on sentence.

I am not sure what "passive voice concept" you are referring to.
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Re: Sound can travel through water for enormous [#permalink]  04 Dec 2013, 06:11
It feels like something is missing...

Sound can travel through water for enormous distances, its acoustic energy prevented from dissipating by boundaries in the ocean created by water layers of different temperatures and densities.

If we replace
dissipating by boundaries in the ocean created by water layers of different temperatures and densities
with "something", we get

Sound can travel through water for enormous distances, its acoustic energy prevented from something.

This sounds like saying: Tom arrived late, his colleagues annoyed by this fact.

What I'm trying to say is that this sounds incomplete. I think it's missing a "with" like:
Sound can travel through water for enormous distances, with its acoustic energy prevented from dissipating by boundaries in the ocean created by water layers of different temperatures and densities.
Any takes on this?
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Re: Sound can travel through water for enormous [#permalink]  06 Dec 2013, 01:57
I think E changes the meaning of the sentence. Acc to me E says sound prevents the acoustic energy from dissipating. Whereas the original sentence means that the acoustic energy is prevented by the boundary walls created by sound.
Re: Sound can travel through water for enormous   [#permalink] 06 Dec 2013, 01:57

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