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# Algae can be found living in almost all parts of the world’s oceans

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Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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Updated on: 03 Oct 2018, 22:00
2
7
00:00

Difficulty:

45% (medium)

Question Stats:

59% (01:15) correct 41% (01:19) wrong based on 272 sessions

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Algae can be found living in almost all parts of the world’s oceans; they are an important part of the world-wide ecosystem by virtue of their constant re-oxygenation of the water which allowed them to rejuvenate even the most polluted environments.

A. by virtue of their constant re-oxygenation of the water which allowed them

B. by virtue of their constant re-oxygenation of the water, which allows them

C. on the grounds that their constant re-oxygenation of the water which has allowed them

D. since the constant re-oxygenation of the water that has been allowing them

E. by virtue of their constant re-oxygenation of the water allowing them

Originally posted by sobby on 30 Jul 2017, 04:33.
Last edited by Bunuel on 03 Oct 2018, 22:00, edited 1 time in total.
Renamed the topic and edited the question.
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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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30 Jul 2017, 05:35
3
OE

The correct response is (B). This choice correctly uses the present-tense verb “allows” which agrees with the present-tense verb “are.” Additionally, it correctly places a comma before “which.”

If you chose (A), we need a comma before the word “which” to set it apart as a clear modifying phrase. The past tense verb “allowed” does not agree with the present tense verb “are” in the non-underlined portion of the second independent clause.

If you chose (C), no comma here before "which" means this choice is incorrect. We’ve also got a past perfect verb (“has allowed”) that conflicts with present tense “are” in the non-underlined portion of this sentence.

If you chose (D), remember the word “that” is restrictive meaning it is necessary to the meaning of the phrase, while "which" is not restrictive. The word “which” adds a sort of parenthetical note to a sentence.

If you chose (E), “water allowing” is unclear. We are missing a relative pronoun or a comma between “water” and “allowing.”

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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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30 Jul 2017, 05:40
B again, because it has a comma before the word which

Thanks,
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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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30 Jul 2017, 11:49
Mahmud6 wrote:
Algae can be found living in almost all parts of the world’s oceans; they are an important part of the world-wide ecosystem by virtue of their constant re-oxygenation of the water which allowed them to rejuvenate even the most polluted environments.

A. by virtue of their constant re-oxygenation of the water which allowed them

B. by virtue of their constant re-oxygenation of the water, which allows them

C. on the grounds that their constant re-oxygenation of the water which has allowed them

D. since the constant re-oxygenation of the water that has been allowing them

E. by virtue of their constant re-oxygenation of the water allowing them

I picked E as it is constant oxygenation that should cause rejuvenation not water as in B
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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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30 Jul 2017, 11:52
Algae can be found living in almost all parts of the world’s oceans; they are an important part of the world-wide ecosystem by virtue of their constant re-oxygenation of the water which allowed them to rejuvenate even the most polluted environments.

A. by virtue of their constant re-oxygenation of the water which allowed them
Without comma which modifies water

B. by virtue of their constant re-oxygenation of the water, which allows them
Correct

C. on the grounds that their constant re-oxygenation of the water which has allowed them
Without comma which modifies water

D. since the constant re-oxygenation of the water that has been allowing them
It is not clear that the doer of re-oxygenation is Algae

E. by virtue of their constant re-oxygenation of the water allowing them
Without comma allowing modifies water

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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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11 Oct 2017, 08:18
2
In my opinion the question is poorly designed.
In the OA B "which" modifies "water" and is not correct as it should refer to "the algae virtue".
So I marked E because I supposed that the author forgot the "," before allowing
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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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04 Sep 2018, 01:51
MvArrow wrote:
In my opinion the question is poorly designed.
In the OA B "which" modifies "water" and is not correct as it should refer to "the algae virtue".
So I marked E because I supposed that the author forgot the "," before allowing

The "which" refers to "re-oxygenation" and not to "algae virtue". Therefore, the question is designed correctly. "Which" doesn't always have to refer right to word it is next to, sometimes a modifier can be in between.
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Re: Algae can be found living in almost all parts of the world’s oceans  [#permalink]

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03 Oct 2018, 09:24
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Algae can be found living in almost all parts of the world’s oceans   [#permalink] 03 Oct 2018, 09:24
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