It is posited by some scientists that the near extinction of

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BTGmoderatorDC: Moderator; Posts: 7187; Joined: Thu Sep 07, 2017 4:43 pmFollowed by: 23 members

by BTGmoderatorDC » Mon May 27, 2019 4:53 am

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It is posited by some scientists that the near extinction of the sap-eating gray bat of northwestern America was caused by government-sponsored logging operations in the early 1920s that greatly reduced the species' habitat

Which of the following, if true, most strongly weakens the scientists' claims?

(A) Logging operations in the 1920s are widely held responsible for the near extinction of other species that lived in the same area.

(B) A boom in new home construction in the early 1920s led congress to open federal lands to logging operations.

(C) A 5-year drought in the early 1920s severely reduced the output of sap in trees in northwestern America.

(D) Numbers of sightings of sap-eating gray bats fell to their lowest numbers in 1926.

(E) Sightings of sap-eating gray bats in Europe stayed roughly the same during the same period.

OA C

Source: Princeton Review

Source: Beat The GMAT — Critical Reasoning | Mon May 27, 2019 4:53 am

deloitte247: Legendary Member; Posts: 2214; Joined: Fri Mar 02, 2018 2:22 pmFollowed by: 5 members

by deloitte247 » Mon Jun 03, 2019 5:54 am

OPTION A - INCORRECT
This argument doesn't weaken the argument because the argument isn't a concern with other species but that of the Gray Bat.

OPTION B - INCORRECT
This doesn't most seriously weaken the argument because the argument is not a concern with what led to the logging operations.

OPTION C - CORRECT
This option weakens the scientists claim because it gives a different reason to the reduction of sap in trees that led to the near extinction of sap eating gray bats. This given reason is the 5-year drought in the early 1920s.

OPTION D - INCORRECT
Well, the argument is not exactly concern with the number of sighting of the gray bats or how their numbers fell the lowest in 1926.

OPTION E - INCORRECT
This doesn't appeal to the scientists claim because this option claims that the geographical setting of the sap eating gray bat is in Europe, unlike the argument which claims America.

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