PDE Q18
- Option : A
- Explanation :
Statements 1 and 3 are correct.
Correct Statements:
-
Statement 1: Ozone is found mostly in the Stratosphere
True. About 90% of the Earth's ozone resides in the stratosphere, forming the ozone layer, typically between 15 to 35 km above the Earth’s surface. -
Statement 3: Ozone absorbs ultraviolet radiation from the Sun
True. The ozone layer absorbs harmful UV-B and UV-C radiation, protecting life on Earth from its damaging effects (like skin cancer and eye problems).
Incorrect Statements:
-
Statement 2: Ozone layer lies 55–75 km above the surface of the earth
Statement 4: Ozone layer has no significance for life on the earth -
Option A (1 and 3)
Both statements are correct — this is the correct answer.
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