Assertion (A): Ozone ( ce{O3}) gas at higher levels of atmosphere is a product of UV radiation acting on Oxygen (…

CBSE Class 10 Science PYQ · Our Environment · Ozone layer and its depletion · 1 Mark · March 2026 · Standard

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151 Mark · March 2026 · Standard
Assertion (A): Ozone (
ce{O3}) gas at higher levels of atmosphere is a product of UV radiation acting on Oxygen (
ce{O2}).
Reason (R) : The amount of ozone in the atmosphere began to drop sharply in 1980s.
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(B)Both A and R are true but R is not the correct explanation of A.
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