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# Most forests in Canada are not being damaged by acid rain

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Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4667
Most forests in Canada are not being damaged by acid rain  [#permalink]

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03 Jan 2012, 12:40
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Question Stats:

100% (01:20) correct 0% (00:00) wrong based on 2 sessions

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Hi, there.

So, in this one, the government makes the claim: "Most forests in Canada are not being damaged by acid rain.”

Then the environmentalist are up in arms, and want the conclusion changed to: "Most forests in Canada do not show visible symptoms of damage by acid rain, such as abnormal loss of leaves, slower rates of growth, or higher mortality.”

If person A says, "X does not exist here," and person B counters by saying, "it's hard to see the visible effects of X," then essentially, person B is telling A: "You're wrong; X is really happening, but you can't see it." That is the crux of the the argument of the folks who want to change the conclusion of the report.

Choice (A) = Not big news. The report said "Most forests . . . are not being damaged," which implies that: some, at least a few, are.
Choice (C) = other countries --- off-topic
Choice (D) = Not earthshattering. Acid rain is happening --- if it weren't, they wouldn't do the report in the first place. The fact that acid rain has been happening to all forest for 15 year is probably agreed upon by all parties. The question is: is it causing damage? That's the controversial issue, which this choice doesn't address.
Choice (E) = Again, like (A), not big news. The report says, "Most forest . . . are not being damaged," which means some are, which means the severity of damage differs from forest to forest. Anything that is already consistent with what's in the report is not going to strengthen an argument attacking it.

Does that make sense? Let me know if you have any questions.

Mike

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Mike McGarry
Magoosh Test Prep

Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

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Joined: 13 Aug 2010
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04 Jan 2012, 21:55
straight B,

“Most forests in Canada do not show visible symptoms of damage by acid rain, such as abnormal loss of leaves, slower rates of growth, or higher mortality.” -- this talks about visible symptoms, but there might be something that not visible

Manager
Joined: 08 Aug 2011
Posts: 157
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04 Jan 2012, 22:57
Acid rain will show symptoms sooner or later and B uses the word yet to be seen, whereas rest options are out of scope.
Re: 17.1 &nbs [#permalink] 04 Jan 2012, 22:57
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