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To reduce the danger to life and property posed by major

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Intern
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Joined: 09 Oct 2012
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Concentration: Strategy
Schools: Bocconi '15 (A)
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To reduce the danger to life and property posed by major [#permalink] New post 18 Apr 2013, 05:24
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Difficulty:

  15% (low)

Question Stats:

86% (01:36) correct 14% (00:31) wrong based on 125 sessions
To reduce the danger to life and property posed by major earthquakes, scientists have been investigating several techniques for giving advance warning of dangerous earthquakes. Since catfish swim erratically before earthquakes, some investigators have proposed monitoring catfish to predict dangerous earthquakes.

Which of the following, if true, most seriously undermines the usefulness of the proposal?

(A) In Japan, which is subject to frequent earthquakes, the behavior of catfish has long been associated with earthquakes.
(B) Mechanical methods for detecting earthquakes have not proved effective.
(C) Tremors lead to the release of hydrogen sulfide gas into water, thereby causing various fish and shellfish to behave erratically.
(D) Careful construction can reduce the dangers posed by earthquakes.
(E) Even very slight, fleeting tremors cause catfish to swim erratically
[Reveal] Spoiler: OA
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Re: To reduce the danger to life and property posed by major ear [#permalink] New post 18 Apr 2013, 05:31
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To prevent damages caused by earthquakes, scientists will rely on catfish because they swim erratically before earthquakes.

Which of the following, if true, most seriously undermines the usefulness of the proposal?

We have to look for an answer that undermines the connection earthquake => movement of catfish.
E does just that:
(E) Even very slight, fleeting tremors cause catfish to swim erratically
The connection in undermined now

Initially I was quite sure of C, so I want to explain why I discarded it eventually:
(C) Tremors lead to the release of hydrogen sulfide gas into water, thereby causing various fish and shellfish to behave erratically.
The text talks about catfish and not about "various fish", we cannot say anything about catfish.
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Re: To reduce the danger to life and property posed by major ear [#permalink] New post 18 Apr 2013, 06:19
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well i think all the choices but E are helping to explain as why this plan can work
E sud be the answer coz conclusion is abt the dangerous earthquakes but E tells us that even minor tremors can cause these fish to behave erratically !! so the plan is useless
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Re: To reduce the danger to life and property posed by major [#permalink] New post 03 May 2014, 16:40
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).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: To reduce the danger to life and property posed by major   [#permalink] 03 May 2014, 16:40
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