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While they remove carbon dioxide from the air, conserve soil

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While they remove carbon dioxide from the air, conserve soil [#permalink]

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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
B. pharmaceuticals, and sources of building material and firewood, are providers of
C. pharmaceuticals and, as sources of building material and firewood that are provide
D. pharmaceuticals and as sources of building material and firewood, for providing
E. pharmaceuticals and, as sources of building material and firewood, provide
[Reveal] Spoiler: OA
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New post 21 Sep 2009, 23:37
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I would say E
kinda like "forest also SUPPLY x and (,modifier,) provide Y
E. pharmaceuticals and, as sources of building material and firewood, provide

Whats OA?
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New post 21 Sep 2009, 23:46
OA is E
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New post 29 May 2011, 10:10
Simple and good question - after "and" .. ", as source of building .., " confused me , Then I realised it is modifier and can be ignored ...

So answer is E parallelism - supply and provide
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 29 May 2011, 10:24
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 - comma twice looks awkward, 'that' changes the meaning
B. pharmaceuticals, and sources of building material and firewood, are providers of - comma after pharmaceuticals is ambiguous
C. pharmaceuticals and, as sources of building material and firewood that are provide - that are provide?
D. pharmaceuticals and as sources of building material and firewood, for providing - for providing?, also you need comma after 'and'
E. pharmaceuticals and, as sources of building material and firewood, provide - makes most sense
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 29 May 2011, 16:51
+1 E

This sentence requires parallelism for the verbs: supply and provide (both have to be working verbs).
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New post 29 Jun 2011, 07:23
I ,initially marked the answer as C, but later realized it should be E
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New post 29 Jun 2011, 09:12
forests supply and provide. So E contains this and should be the correct answer.
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 30 Jun 2011, 00:06
E for me too....
We cannot have comma before 'and'.... This will eliminate options A and B...
C has the incorrect usage 'that are provide'...
D is incorrect because of "for providing"... supply has to be parallel with provide...

Left with E....
:)
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 17 Jul 2012, 19:44
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
B. pharmaceuticals, and sources of building material and firewood, are providers of
C. pharmaceuticals and, as sources of building material and firewood that are provide
D. pharmaceuticals and as sources of building material and firewood, for providing
E. pharmaceuticals and, as sources of building material and firewood, provide

I think this particular problem is more related with the meaning of the sentence.

Forests supplies pharmaceuticals.
and 'as sources of building material and firewood' forests provide employment for millions worldwide.

The above combination conveys the meaning clearly.

A. pharmaceuticals, and, as sources of building material and firewood, that provide
'and' creates a fragment sentence

B. pharmaceuticals, and sources of building material and firewood, are providers of
meaning distortion

C. pharmaceuticals and, as sources of building material and firewood that are provide
meaning distortion

D. pharmaceuticals and as sources of building material and firewood, for providing
parallelism, 'for providing' meaning distortion

E. pharmaceuticals and, as sources of building material and firewood, provide
correct
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 27 May 2014, 06:23
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, conserve soil [#permalink]

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New post 04 Nov 2014, 10:48
nimrod wrote:
E for me too....
We cannot have comma before 'and'.... This will eliminate options A and B...
C has the incorrect usage 'that are provide'...
D is incorrect because of "for providing"... supply has to be parallel with provide...

Left with E....
:)


What do we mean here by saying we cannot have a comma before 'and' ?
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New post 05 Nov 2014, 00:36
shelrod007 wrote:
nimrod wrote:
E for me too....
We cannot have comma before 'and'.... This will eliminate options A and B...
C has the incorrect usage 'that are provide'...
D is incorrect because of "for providing"... supply has to be parallel with provide...

Left with E....
:)


What do we mean here by saying we cannot have a comma before 'and' ?


I guess he meant that X, and Y is imprecise and that the correct structure should be X and Y. Well, I eliminated A because of 'that..'.

A. pharmaceuticals, and, as... firewood, that provide
Structure: Forests supply, and that provide - It's a sentence fragment. 'that' is missing an antecedent.


E. pharmaceuticals and, as...firewood, provide
Structure: Forests supply and provide - parallel

Hope it helps!
Dolly :)
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 19 May 2015, 00:19
chandru42 wrote:
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
B. pharmaceuticals, and sources of building material and firewood, are providers of
C. pharmaceuticals and, as sources of building material and firewood that are provide
D. pharmaceuticals and as sources of building material and firewood, for providing
E. pharmaceuticals and, as sources of building material and firewood, provide


It is a Parallelism question.

Supply ..... and provide – correct parallism.

Now here, modifier is added with ‘,modifier, ‘

Thus, ‘comma after and’ is ‘not a part of and’ rather it is ‘a part of inroduction of the modifier’.

Hence, option E is the correc answer.
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 20 May 2015, 02:15
why there should not be "that" in E option. that provide.

where and when we should use "that " normally ?
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New post 20 May 2015, 04:44
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manikanth wrote:
why there should not be "that" in E option. that provide.

where and when we should use "that " normally ?


Primarily there are 2 usages of that:
1. As a Noun
2. As a connector.

1. As a Noun
Chairs that don’t have cushions are uncomfortable to sit on. Note that, here 'that' refers back to chairs. Because Chairs is a plural noun, you should use verb - do + not for a plural noun = Don't (and not doesn't)

2. As a connector
Eg. I believe that he is innocent.

Let me come back to the quetion:
While they (referring to forests) remove carbon dioxide from the air, conserve soil and water, and house thousands of species,

forests also

1. supply potentially valuable pharmaceuticals and (note here there are only 2 items in the list and hence we use just AND. We do not use comma + and)
2. provide employment for millions worldwide.

Now, 2nd act of providing employment has a modifier which is introduced by way of a phrase between two commas:
, as sources of building material and firewood,

Do not mistake to refer the first comma from modifier with and preceding that comma.

Key in solving SC question is Meaning (and not the grammar)!

Cheers!
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 02 Aug 2016, 23:48
chandru42 wrote:
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
B. pharmaceuticals, and sources of building material and firewood, are providers of
C. pharmaceuticals and, as sources of building material and firewood that are provide
D. pharmaceuticals and as sources of building material and firewood, for providing
E. pharmaceuticals and, as sources of building material and firewood, provide


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 --> NOT PARALLEL
B. pharmaceuticals, and sources of building material and firewood, are providers of --->NOT PARALLEL; INCORRECT MEANING
C. pharmaceuticals and, as sources of building material and firewood that are provide ---> NOT PARALLEL
D. pharmaceuticals and as sources of building material and firewood, for providing -----> NOT PARALLEL
E. pharmaceuticals and, as sources of building material and firewood, provide ----> correct


Parallelism is at play here
Clearly the correct answer is E
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New post 12 Aug 2016, 15:48
Remove the modifiers and the parallel form remains, Forest also supply X , provide Y

E. pharmaceuticals and, as sources of building material and firewood, provide
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Re: While they remove carbon dioxide from the air, conserve soil [#permalink]

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New post 12 Aug 2016, 15:48
Remove the modifiers and the parallel form remains, Forest also supply X , provide Y

E. pharmaceuticals and, as sources of building material and firewood, provide
Re: While they remove carbon dioxide from the air, conserve soil   [#permalink] 12 Aug 2016, 15:48
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