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# Temperature shifts can trend toward warming or cooling, based on a num

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Manager
Joined: 01 Sep 2016
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GMAT 1: 690 Q49 V35
Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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Updated on: 31 May 2017, 03:52
3
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Difficulty:

85% (hard)

Question Stats:

52% (02:22) correct 48% (02:17) wrong based on 202 sessions

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Temperature shifts can trend toward warming or cooling, based on a number of gravitational, seasonal, and human variables. These variables affect different ecosystems differently and thus should produce a random pattern in which some ecosystems warm while others cool. However, data gathered in a 1980s study shows that the shifts occur in a definitely skewed pattern, with most areas’ temperatures rising simultaneously.

Which of the following, if true, forms the best basis for at least a partial explanation for the patterned changes recorded in the study?

A Massive warming can result from widespread pollution in many countries.

B Certain regions with specific geographical features respond in varying degrees to surrounding changes.

C Some regions grow warmer due to increased volcanic activity in those regions.

D In the 1990s and beyond, which were not as well documented, human pollution skewed the trend toward warming.

E Regions that are geographically closest are most likely to be affected in similar ways.

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Originally posted by bkpolymers1617 on 31 May 2017, 03:43.
Last edited by carcass on 31 May 2017, 03:52, edited 1 time in total.
Edited the question and added the OA
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Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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31 May 2017, 03:56
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E is tempting but no closest regions are mentioned in the stem. The other choices are irrelevant.
Hope this helps.
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Re: Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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31 May 2017, 04:23
Hey Carcass- thanks for the response. Can you please throw some light on why e is not right. I think it is quite natural to assume this relationship- that the regions being discussed are the close ones. Is A the right answer specifically because it addresses the heat issue, and relates directly with the stem. Thanks
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we shall fight on the beaches,
we shall fight on the landing grounds,
we shall fight in the fields and in the streets,
we shall fight in the hills;
we shall never surrender!
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Re: Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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31 May 2017, 06:30
Top Contributor
Because in E you do have "most likely" but you lack data to address this claim.

Moreover, the stem says "simultaneously". A fits the bill with "widespread" -----> at the same time (simultaneously), as it turns out.

Hope this helps.

Regards
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Re: Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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31 May 2017, 11:28
I think option E definitely appears to be correct but in actual is not.
The difference b\w A and E lies in the below line in the argument:-
".. with most areas’ temperatures rising simultaneously.. "

Option A just sticks with the rise in temperature. However, option E could go either for rise or fall.
Hence A is more appropriate for the case.
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Re: Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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31 May 2017, 11:43
bkpolymers1617 wrote:
Hey Carcass- thanks for the response. Can you please throw some light on why e is not right. I think it is quite natural to assume this relationship- that the regions being discussed are the close ones. Is A the right answer specifically because it addresses the heat issue, and relates directly with the stem. Thanks

You are correct, A is right because the stem mentions "gravitational, seasonal, and human variables" and pollution is a human variable.

Though E sounds logically correct, it is just a "real-world" distraction. There's nothing in the passage that talks about the geography or location being a factor.
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Re: Temperature shifts can trend toward warming or cooling, based on a num  [#permalink]

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19 Dec 2018, 14:56
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Re: Temperature shifts can trend toward warming or cooling, based on a num   [#permalink] 19 Dec 2018, 14:56
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