Question 5 - Assertion Reasoning questions (MCQ) - Chapter 15 Class 10 - Our Environment

Last updated at April 16, 2024 by

Assertion (A): CFCs deplete the ozone layer.

Reason (R): CFCs are used as refrigerants and in fire extinguishers.

 

Answer:

Chlorofluorocarbons (CFCs ), which are used as refrigerants and in fire extinguishers , deplete the ozone layer by rising into the stratosphere and releasing chlorine atoms which react with ozone.

Thus,

  • Assertion is true.
  • Reason is true.
  • Reason is the correct explanation of assertion.

So, the correct answer is (a).

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo