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# The population of peregrine falcons declined rapidly during

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Senior Manager
Joined: 19 Feb 2004
Posts: 413
Location: Lungi
The population of peregrine falcons declined rapidly during [#permalink]

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01 Apr 2004, 07:17
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Question Stats:

100% (01:44) correct 0% (00:00) wrong based on 2 sessions

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The population of peregrine falcons declined rapidly during the
1950's and 1960's and reached an all-time low in the early 1970's.
The decline was attributed by scientists to the widespread use of the
pesticide DDT in rural areas.

Which of the following, if true, gives the strongest support to the
scientits claim?

(A) DDT was not generally in use in areas devoted to heavy industry.
(B) In the time since the use of DDT was banned in 1972, the
population of peregrine falcons has been steadily increasing. (C)
Peregrine falcons, like other birds of prey, abandon eggs that have
fallen out of the nest, even if the eggs remain intact.
(D) Starlings, house sparrows, and blue jay-birds the peregrine
falcon prey on-were not adversely affected by DDT in their habitats.
(E) Other birds of prey, such as the osprey, the bald eagle, and the
brown pelican, are found in the same areas as is the peregrine falcon.
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4288

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01 Apr 2004, 13:33
although ALL of the answers, including B, can be refuted, I agree that B is best.
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Best Regards,

Paul

Manager
Joined: 27 Feb 2004
Posts: 185
Location: illinois

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01 Apr 2004, 15:01
B is better than other choices...but we can also say just because it started to increase after the DDT was banned does not mean that DDT was the main reason....
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4288

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01 Apr 2004, 15:05
monarc wrote:
B is better than other choices...but we can also say just because it started to increase after the DDT was banned does not mean that DDT was the main reason....

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Best Regards,

Paul

Senior Manager
Joined: 19 Feb 2004
Posts: 413
Location: Lungi

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03 Apr 2004, 22:50
yep OA is B.
03 Apr 2004, 22:50
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