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# The importance of the ozone layer to terrestrial animals is

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Director
Joined: 14 Jan 2007
Posts: 774
The importance of the ozone layer to terrestrial animals is [#permalink]

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02 Jul 2007, 04:20
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The importance of the ozone layer to terrestrial
animals is that it entirely filters out some
wavelengths of light but lets others through. Holes in
the ozone layer and the dangers associated with these
holes are well documented. However, one danger that
has not been given sufficient attention is that these
holes could lead to severe eye damage for animals of
many species.
Which one of the following is most strongly
supported by the statements above, if they are true?

(A) All wavelengths of sunlight that can cause eye
damage are filtered out by the ozone layer
where it is intact.
(B) Few species of animals live on a part of the
earth’s surface that is not threatened by holes
in the ozone layer.
(C) Some species of animals have eyes that will not
suffer any damage when exposed to
unfiltered sunlight.
(D) A single wavelength of sunlight can cause
severe damage to the eyes of most species of
animals.
(E) Some wavelengths of sunlight that cause eye
damage are more likely to reach the earth’s
surface where there are holes in the ozone
layer than where there are not.
Senior Manager
Joined: 28 Feb 2007
Posts: 302

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02 Jul 2007, 04:39
E.
Senior Manager
Joined: 11 May 2004
Posts: 328

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02 Jul 2007, 05:44
Definitely E.
Intern
Joined: 06 Jun 2007
Posts: 40

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02 Jul 2007, 05:45
E for me..

A-> passage never mentioned that all dangerous wavelengths are filtered.
B-> irrevelant
C-> passage mentioned many species can suffer but dint say that some can survive..
D-> irrevelant
E-> Best
Director
Joined: 14 Jan 2007
Posts: 774

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04 Jul 2007, 13:08
Well done guys.
OA is E
04 Jul 2007, 13:08
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