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NDA 2022 GAT · General Knowledge · Ecology and Environment · easy

The ozone layer absorbs harmful ultraviolet radiation from the Sun. 2. Chlorofluorocarbons (CFCs) deplete the ozone layer.

Single correct option

Which of the statements given below is/are correct?
1. The ozone layer absorbs harmful ultraviolet radiation from the Sun.
2. Chlorofluorocarbons (CFCs) deplete the ozone layer.
  1. A. 1 only
  2. B. 2 only
  3. C. Both 1 and 2
  4. D. Neither 1 nor 2
Show answer and solution

Answer: (C) Both 1 and 2

Ozone in the stratosphere absorbs most of the Sun's harmful UV-B and UV-C radiation; statement 1 is correct. CFCs release chlorine atoms in the stratosphere under UV light and each chlorine atom destroys many ozone molecules; statement 2 is correct.
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Original question written in the NDA 2022 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake