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# The green flash, an atmospheric refractive phenomenon whereby the top

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SVP
Joined: 12 Dec 2016
Posts: 1553
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
The green flash, an atmospheric refractive phenomenon whereby the top  [#permalink]

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16 Dec 2017, 14:22
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Difficulty:

5% (low)

Question Stats:

89% (00:55) correct 11% (01:02) wrong based on 67 sessions

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The green flash, an atmospheric refractive phenomenon whereby the top edge of a setting sun will momentarily turn green, rarely is seen by the naked eye, primarily on account of requiring specific favorable conditions to occur.

A) on account of requiring
B) on account of their requiring
C) because they require
D) because it requires
E) because of requiring
Manager
Joined: 04 Dec 2016
Posts: 99
Re: The green flash, an atmospheric refractive phenomenon whereby the top  [#permalink]

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16 Dec 2017, 23:34
in answer choice D, I think it can refer to 'naked eye' as well as to the 'green flash' then how D is a correct choice?
Manager
Joined: 07 Sep 2013
Posts: 62
Re: The green flash, an atmospheric refractive phenomenon whereby the top  [#permalink]

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17 Dec 2017, 01:41
D is correct.
It will refer to green flash

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Manager
Joined: 04 Dec 2016
Posts: 99
Re: The green flash, an atmospheric refractive phenomenon whereby the top  [#permalink]

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17 Dec 2017, 01:50
alokgupta1009 wrote:
D is correct.
It will refer to green flash

Sent from my Redmi Note 4 using GMAT Club Forum mobile app

K, is there any explanation why can't it refer to 'naked eye'?

Naked eye/green flash requires specific favourable conditions.... ?
Manhattan Prep Instructor
Joined: 22 Mar 2011
Posts: 1415
Re: The green flash, an atmospheric refractive phenomenon whereby the top  [#permalink]

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30 Dec 2017, 18:51
Kchaudhary, the simple answer is that it makes no sense for "it" to refer to "the naked eye"--how can "the naked eye" occur? If the intended meaning is clear, then it's fine to use a pronoun with multiple possible antecedents. Also, "the green flash" is the subject of the sentence, while "the naked eye" is part of a modifier. This creates the structural expectation that "it" will refer to "the green flash."
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Re: The green flash, an atmospheric refractive phenomenon whereby the top   [#permalink] 30 Dec 2017, 18:51
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