Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized for You
we will pick new questions that match your level based on your Timer History
Track Your Progress
every week, we’ll send you an estimated GMAT score based on your performance
Practice Pays
we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Christina scored 760 by having clear (ability) milestones and a trackable plan to achieve the same. Attend this webinar to learn how to build trackable milestones that leverage your strengths to help you get to your target GMAT score.
While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
21 Sep 2009, 17:01
2
10
00:00
A
B
C
D
E
Difficulty:
5% (low)
Question Stats:
84% (01:21) correct 16% (01:39) wrong based on 971 sessions
HideShow timer Statistics
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 providing
(D) pharmaceuticals and as sources of building material and firewood, for providing
(E) pharmaceuticals and, as sources of building material and firewood, provide
Re: While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
21 Sep 2009, 22:37
4
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
Re: While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
29 May 2011, 09:24
1
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
Re: While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
17 Jul 2012, 18:44
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
_________________
Luck is the additional surplus on the way to one's constant effort.
Re: While they remove || clarification needed on older posts.
[#permalink]
Show Tags
18 Jul 2012, 15:59
1
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.'
Re: While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
20 May 2015, 03:44
1
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)!
Re: While they remove carbon dioxide from the air, conserve soil
[#permalink]
Show Tags
02 Aug 2016, 22:48
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
_________________
Posting an answer without an explanation is "GOD COMPLEX". The world doesn't need any more gods. Please explain you answers properly. FINAL GOODBYE :- 17th SEPTEMBER 2016. .. 16 March 2017 - I am back but for all purposes please consider me semi-retired.
close
84% (01:21) correct 
.
