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# Ozone reaches high concentrations twelve miles above Earth

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Current Student
Status: It always seems impossible until it's done!!
Joined: 29 Aug 2012
Posts: 1122
Location: India
WE: General Management (Aerospace and Defense)
Ozone reaches high concentrations twelve miles above Earth  [#permalink]

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02 Aug 2014, 23:26
1
2
00:00

Difficulty:

55% (hard)

Question Stats:

50% (01:19) correct 50% (01:07) wrong based on 175 sessions

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NEW PROJECT!: Renew Old Thread => Back to basic => Give your explanation- Get Kudos Point

Ozone reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.

A) has long appeared that it was immune from
B) has long appeared to have been immune from
C) has long appeared as being immune to (Correct idiom)
D) had long appeared immune to
E) had long appeared that it was immune to

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Joined: 22 Feb 2009
Posts: 171
Ozone reaches high concentrations twelve miles above Earth  [#permalink]

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03 Aug 2014, 00:15
2
Gnpth wrote:
NEW PROJECT!: Renew Old Thread => Back to basic => Give your explanation- Get Kudos Point

Ozone reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.

A) has long appeared that it was immune from
B) has long appeared to have been immune from
C) has long appeared as being immune to (Correct idiom)
D) had long appeared immune to
E) had long appeared that it was immune to

Go for D." Immune to" is the correct idiom. Left with C,D and E. The correct tense is past perfect. Eliminate C. E is redundant. So D is the correct answer.
Note: If you are "immune to" something, it doesn't bother you.
If you are "immune from" something, it cannot be applied to you.
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Joined: 27 Jul 2012
Posts: 105
Re: Ozone reaches high concentrations twelve miles above Earth  [#permalink]

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03 Aug 2014, 08:43
1
I don't know about the idiom part. my approach was based on meaning:
the verb tense is wrong. we need one type of past tense; so A, B, and C out.
between D and E: E is wordy (when the subject of the two sentence is the same, it is wordy to say"it had long appeared that it was immune to " just it had long appeared immune to" is enough)
So D wins.
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Re: Ozone reaches high concentrations twelve miles above Earth  [#permalink]

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13 Dec 2017, 03:40
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: Ozone reaches high concentrations twelve miles above Earth &nbs [#permalink] 13 Dec 2017, 03:40
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