Multiple choice

Directions: For the Assertion (A) and Reason (R) below, choose the correct alternative from the following. Assertion: The Ozone layer present in the upper atmosphere of earth is beneficial for sustaining life on earth. Reason: The Ozone layer blocks the harmful ultraviolet rays from the Sun and thus protects life on earth.

  1. Both A and R are true and R is the correct explanation of A.

  2. Both A and R are true but R is not the correct explanation of A.

  3. A is true but R is false.

  4. A is false but R is true.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both A and R are true, and R is the reason for A. Hence, option (1) is correct.

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