A report by the American Academy for the Advancement of : GMAT Sentence Correction (SC) - Page 2
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10 Apr 2010, 23:15
D should be "many of the dioxins that are currently uncontrolled and to which North Americans are exposed come
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11 Apr 2010, 08:12
Eliminating "much" since the sentence talks about number of dioxins which can be counted and not the amount of dioxin which can not be counted.

I am going with E.
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01 Jan 2011, 08:02
(E)

(A) much of the currently uncontrolled dioxins to which North Americans are exposed comes
(B) much of the currently uncontrolled dioxins that North Americans are exposed to come
(C) much of the dioxins that are currently uncontrolled and that North Americans are exposed to comes
(D) many of the dioxins that are currently uncontrolled and North Americans are exposed to come
(E) many of the currently uncontrolled dioxins to which North Americans are exposed come --> CORRECT
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01 Jan 2011, 08:56
Any inputs on how to diff between much and many?
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01 Jan 2011, 10:42
agreed dioxin is countable that's we choose D,E
E seems precisely
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07 Jan 2011, 23:28
many is used for countable nouns

much is used for uncountable nouns

OG problem--dioxin is countable noun
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07 Mar 2012, 22:26
There are a group of chemicals called dioxins "The name "dioxins" is often used for the family of structurally and chemically related polychlorinated dibenzo para dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)."

Hence Many should be used

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07 Mar 2012, 23:02
The answer is E. Here Dioxins are countable so Many should be used rather than Much and as Dioxins are plural "come" should be used instead of "Comes".
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30 Jul 2012, 21:39
I agree with ans B. It has the correct subj verb agreement. Although still unsure if Dioxins is countable or uncountable
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13 Apr 2013, 11:38
i get it why E is correct. However, there's another issue in this sentence "to come" vs "to which". I don't know why to which is correct. Also, I read in one of the forums that anytime "which" is used without a comma, its considered incorrect. Can someone please clarify these two issues. Thanks
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14 Apr 2013, 22:16
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27. A report by the American Academy for the Advancement of Science has concluded that much of the currently uncontrolled dioxins to which North Americans are exposed comes from the incineration of wastes.
(A) much of the currently uncontrolled dioxins to which North Americans are exposed comes
(B) much of the currently uncontrolled dioxins that North Americans are exposed to come
(C) much of the dioxins that are currently uncontrolled and that North Americans are exposed to comes
(D) many of the dioxins that are currently uncontrolled and North Americans are exposed to come
(E) many of the currently uncontrolled dioxins to which North Americans are exposed come

When to use a much v/s many. and should it be "exposed to" or just "exposed" ? A better explaination instead of just an answer letter would be preferred. Thanks

Tricky question.

Small tip to recognize countable vs uncountable.

If countable --> you will see Noun + "s", e.g. dioxins.
If uncountable --> NO "s", e.g. dioxin.

"Dioxins" here means different types of dioxin chemical.

Narrow down to D & E. No need to say E is much better.

Hope it helps.
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29 May 2013, 16:35
many is used for countable nouns and much is used for uncountable nouns.

dioxins = plural --> requires plural verb ---> come

Between D and E, E is succinct and hence better.
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28 Aug 2013, 01:43
'D' is too wordy, 'much' cannot be referred to 'dioxins' since 'dioxins' is plural noun (A,B,C can be eliminated) so that 'E' is the answer
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13 Oct 2013, 05:31
pqhai wrote:
Tricky question.

Small tip to recognize countable vs uncountable.

If countable --> you will see Noun + "s", e.g. dioxins.
If uncountable --> NO "s", e.g. dioxin.

"Dioxins" here means different types of dioxin chemical.

There are many singular nouns ending in "s" such as athletics, jeans, mathematics, Massachusetts, etc. We need to know the singular and plural forms of the noun to use this tip with confidence. But we can infer from the use of preposition "of" after the quantifiers in all the options that the sentence talk about "the many types of dioxin" instead of "dioxins amount" where we should use "much dioxins" instead. I might be wrong, what do you guys think about it?
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08 Jan 2014, 11:00
27. A report by the American Academy for the Advancement of Science has concluded that much of the currently uncontrolled dioxins to which North Americans are exposed comes from the incineration of wastes.
(A) much of the currently uncontrolled dioxins to which North Americans are exposed comes
(B) much of the currently uncontrolled dioxins that North Americans are exposed to come
(C) much of the dioxins that are currently uncontrolled and that North Americans are exposed to comes
(D) many of the dioxins that are currently uncontrolled and North Americans are exposed to come
(E) many of the currently uncontrolled dioxins to which North Americans are exposed come

When to use a much v/s many. and should it be "exposed to" or just "exposed" ? A better explaination instead of just an answer letter would be preferred. Thanks

Right off the bat, "much" is wrong because dioxins are countable. So A/B/C are gone.

The problem with D is that we don't have correct parallelism: "many of X... that are Y.... and Z are.... exposed to" is wrong parallelism.. We would need a THAT before "North Americans". Also, "dioxins that are currently uncontrolled" just sounds a bit too wordy IMO, E has a better, more concise structure with "currently uncontrolled".

I was a bit unsure if "to which" was correctly used, but since I saw bigger problems with D, I went with E.
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14 Jan 2014, 14:03
I am struggling to identify why 'B' is incorrect. If we go by the explanation in MGMAT, uncountable nouns are something which u cannot express in numbers, eg. we cannot say 1 dioxin or 2 dioxin, therefore i believe much suits more appropriately with dioxin and 'B' should be the correct one not 'E'.
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14 Jan 2014, 20:17
vach17 wrote:
I am struggling to identify why 'B' is incorrect. If we go by the explanation in MGMAT, uncountable nouns are something which u cannot express in numbers, eg. we cannot say 1 dioxin or 2 dioxin, therefore i believe much suits more appropriately with dioxin and 'B' should be the correct one not 'E'.

A report by the American Academy for the Advancement of Science has concluded that much of the currently uncontrolled dioxins to which North Americans are exposed comes from the incineration of wastes.

(B) much of the currently uncontrolled dioxins that North Americans are exposed to come
As you said, 'much ... dioxins' is singular and hence must be followed by singular verb - comes. But the verb given is plural.

(E) many of the currently uncontrolled dioxins to which North Americans are exposed come
the plural word 'dioxins' is complemented by plural verb 'come'

Still in doubt?

Draw a simple analogy.
Replace dioxins with pollutants.

much of the currently uncontrolled pollutants vs
many of the currently uncontrolled pollutants ...

Which one do you feel is correct?
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15 Feb 2014, 10:13
how can you count chemicals being burned?
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23 Jun 2014, 10:33
I got the correct answer by using much and many differentiation. My question is regarding exposed to and exposed. I read in previous post that split infinitive shouldn't be used at the end of sentence. Can't make head and tail out of that. I know infinitive is to, what is split infinitive, is it where the sentence ends, is this a grammatical rule? Honestly the sentence is not ending there. Coming back to original question which one is a better usage exposed to or are exposed?

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02 Jul 2014, 07:57
Dear Farhan,

The split infinitive rule says that you must not insert other words (adverbs) between the "to" and the verb. However, none of the options in this question use the split infinitive.

I think your confusion arises from the position of "to". The short answer is that it does not matter.

Review the following sentences:

The ideas (to which you are exposed) are great ones.
The ideas (that/which you are exposed to) are great ones.

Both these sentences mean the same thing. "To which you are exposed" and "that you are exposed to" are both valid modifiers that provide information about the ideas in question.

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