| Assertion (A): The Ozone layer present at the top of stratosphere is very crucial for human survival. |
| Reason (R): Ozone layer prevents IR radiation. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: C
Solution :
Option [c] is correct. Explanation: There is a layer present at the top or stratosphere which is known as Ozone layer. This layer prevents UV radiations, mainly coming from the Sun, to reach Earth. UV radiation is harmful for human beings. So, the assertion is true. But the reason is false.
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