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# SC -birds

Author Message
VP
Joined: 17 Jun 2008
Posts: 1322

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29 Jul 2008, 19:11
For some birds the sense of smell appears to play a role in navigation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.

(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(C) were found to have increasing difficulty
(D) had been found to have increased difficulties
(E) have been found to have increasing difficulties
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Its Now Or Never

Director
Joined: 10 Sep 2007
Posts: 923

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29 Jul 2008, 20:20
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.
VP
Joined: 17 Jun 2008
Posts: 1322

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30 Jul 2008, 02:57
abhijit_sen wrote:
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.

thank u this clears
OA is B
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cheers
Its Now Or Never

VP
Joined: 17 Jun 2008
Posts: 1322

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30 Jul 2008, 02:58
abhijit_sen wrote:
We need singular difficulty to match with homing.
So A, D, and E out.
C is out because of wrong tense.

IMO B.

why were found to have in option B is rejected.Please shed light on this too
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cheers
Its Now Or Never

Re: SC -birds   [#permalink] 30 Jul 2008, 02:58
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# SC -birds

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