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sc - acid

Expert replies
by Xbond » Mon Oct 05, 2009 12:12 pm
Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids.

(A) with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids
(B) with atmospheric water vapor producing highly corrosive sulfuric and nitric acids
(C) and atmospheric water vapor which has produced highly corrosive sulfuric and nitric acids
(D) and atmospheric water vapor which have produced sulfuric and nitric acids which are highly corrosive
(E) and atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

oa is E
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Source: — Sentence Correction |

by GMATBootcamp » Tue Oct 06, 2009 12:26 pm
"Between....and..." is an idiom, so ans A and B can be immediately eliminated.

Chemical reactions is a plural subject, so the verb needs to also be plural. Ans C has the verb "has" in singular form, so C is eliminated.

In ans D, the last part of the sentence, "which are highly corrosive" is a non restrictive clause and refers only to nitric acids, when it needs to refer to both sulfuric and nitric acids. Eliminate D

Only answer E correctly addresses all the issues above.
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