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Question
Chemistry
Ozone is formed in the upper atmosphere from oxygen by the action of
Q. Ozone is formed in the upper atmosphere from oxygen by the action of
2929
208
KEAM
KEAM 2003
Environmental Chemistry
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A
ultraviolet rays
58%
B
cosmic rays
12%
C
free radicals
23%
D
nitrogen oxides
4%
E
thermal radiation from sunlight
4%
Solution:
Ozone is fanned in the upper atmosphere from oxygen by the action of ultraviolet rays. Ozone can absorb UV light to reform oxygen. Thus, the ozone layer acts as a screen and prevents the harmful UV radiations from reaching the surface of earth.