Exams › SSC CGL (Prelims) › General

Read the following statements marked as Assertion (A) and Reason (R): Assertion (A): The ozone hole is most prominent over the Antarctic region during the spring months. Reason (R): Polar Stratospheric Clouds (PSCs) provide the surface on which chemical reactions produce active chlorine that destroys ozone.

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.

Correct answer: Both A and R are true, and R is the correct explanation of A.

Solution

Both statements are true. In Antarctic spring, sunlight returns after the polar winter and activates chlorine compounds formed on PSCs, causing rapid ozone destruction. Thus, the reason correctly explains the assertion.

Related SSC CGL (Prelims) General questions

• Which is generally not classified as a weather parameter?
• The main objective of the National Green Hydrogen Mission is to:
• When did India successfully conduct the first Gaganyaan TV-D1 test flight?
• Consider the following statements regarding renewable energy certificates (RECs): 1. They are issued for electricity generated from renewable sources. 2. They help utilities meet renewable purchase obligations.
• The approximate percentage of nitrogen in Earth’s atmosphere is:
• The speed required by a satellite to remain in a circular orbit around Earth is known as:

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →