Question

The presence of ozone \left( {{O}_{3}} \right)
in the atmosphere of earth [CPMT 1984]
A) Hinders higher rate of photosynthesis
B) Helps in checking the penetration of ultraviolet rays to earth
C) Has been responsible for increasing the average global temperature in recent years
D) Is advantageous since it supplies {{O}_{2}}
for people travelling in jets

Answer 1

(B) is the correct option.

Answer 2

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The presence of ozone \left( {{O}_{3}} \right)

in the atmosphere of earth Helps in checking the penetration of ultraviolet rays to earth.

★Option-: B

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