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While they remove carbon dioxide from the air

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While they remove carbon dioxide from the air [#permalink] New post 17 Jul 2012, 18:29
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

100% (01:25) correct 0% (00:00) wrong based on 3 sessions
While they remove carbon dioxide from the air while-they-remove-carbon-dioxide-from-the-air-conserve-soil-84179.html
the investigations of many psychologists gmat the-investigations-of-many-psychologists-and-anthropologists-76305.html


Quote:
Hi
I was solving SC questions and faced certain problems. When i checked on the forum these questions have been already posted but the replies are not very satisfactory.

In order to avoid reposting, i am providing links to these questions.
Can somebody explain the answers?

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Re: While they remove || clarification needed on older posts. [#permalink] New post 18 Jul 2012, 06:18
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87. While they remove carbon dioxide from the air, conserve soil and water, and house thousands of species, forests also supply potentially valuable pharmaceuticals, and, as sources of building material and firewood, that provide employment for millions worldwide.
A. pharmaceuticals, and, as sources of building material and firewood, that provide
"that"is used when something very important (essential) detail has to be introduced.Here,"that"is not necessary

B. pharmaceuticals, and sources of building material and firewood, are providers of
irrelevant usage -"providers of"

C. pharmaceuticals and, as sources of building material and firewood that are provide
irrelevant usage-that are "provide"

D. pharmaceuticals and as sources of building material and firewood, for providing

looks attractive because we have learnt the verb+ing modifier recently.
(Verb+ing is used after a comma, so this option is anyway ruled out)

E. pharmaceuticals and, as sources of building material and firewood, provide

the confusion goes off when you read as=because;read it again.
Also, you just consider that,
forests also supply potentially valuable pharmaceuticals, and, as sources of building material and firewood, provide employment for millions worldwide.
SUPPLY X,AND,Y structure.

Hope this works !
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Re: While they remove || clarification needed on older posts. [#permalink] New post 18 Jul 2012, 15:59
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In this sentence 'forests' do two things: A and B. Therefore we need Parallel structure. To elaborate: forests also Verb1 (supply) Phrase1, and Verb2 Phrase 2. Therefore we can home in right away at the end of the underlined part, looking for a verb that matches 'supply' in tense. The only answer that works is (E), which has 'provide.'

The other twist to this sentence is there is an interrupting phrase: '..., as sources of...firewood, ...'. An interruptor should be set off by a comma at the beginning of the phrase and one at the end of the phrase. Only (A) and (E) do so, however (A) is wrong because 'that provide' is not parallel to 'supply.'

Hope that clears things up :).
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Re: While they remove || clarification needed on older posts. [#permalink] New post 19 Jul 2012, 09:29
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@thevenus and Chris thanx for the explanations

if you could also explain this post (the second one) it would be great help

the-investigations-of-many-psychologists-and-anthropologists-76305.html


thnax again :)
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Re: While they remove || clarification needed on older posts. [#permalink] New post 19 Jul 2012, 11:16
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Hi @maybeam,

The investigations of many psychologists and anthropologists support the generalization of there being little that is a significant difference in the underlying mental processes manifested by people from different cultures.

Image

I personally feel that many of you have gotten confused in selecting the correct answer because the meaning of the sentence is not very clear. So let us first understand the meaning of the sentence. This sentence says that many psychologists and anthropologists carried out investigation and found out that there are very few aspects that are drastically different in the thought processes expressed by people belonging to different cultures.

Image

Now that we understand the meaning, it’s time to figure out the errors in the sentence. The underlined phrase “of there being” does not clearly convey that this generalization is about something. Also this “little” itself is not a “significant difference”. There is little that is “significantly different”. Hence, this phrase has to be reworded too. Now let’s run the POE to get the correct answer.

POE:

Choice A: of there being little that is a significant difference: Incorrect for reason stated above.

Choice B: of there being little that is significantly different: Incorrect as it repeats the “of there being” issue as in Choice A.

Choice C: of little that is significantly different: Incorrect. This choice distorts the meaning of the sentence because now it says “generalization of little”. The generalization is not about little.

Choice D: that there is little that is significantly different: Correct. This choice corrects both the errors in the original sentence. What this generalization is about is absolutely clear from the “that clause”. Also, it correctly conveys that there is very little that is significantly different.

Choice E: that there is little of significant differences: Incorrect as “differences” is a countable noun and hence, we should use “few” and not “little”.

Image

1. It is very important to understand the intended meaning of the sentence to arrive at the correct answer.
2. Use correct expressions to clearly convey the intended meaning.

Hope this helps.
Thanks.
Shraddha
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Re: While they remove carbon dioxide from the air [#permalink] New post 21 Nov 2013, 11:52
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: While they remove carbon dioxide from the air   [#permalink] 21 Nov 2013, 11:52
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