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Ozone layer depletion - class-XI

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Multiple Choice

Read the following statements and select the correct option.


Statement 1: Ozone layer present in the stratosphere protects the living organisms from harmful UV rays coming from the sun by absorbing nearly all of them.

Statement 2: Ozone formed in the troposphere by photochemical reactions as a result of human activities which is harmful to all living organisms.

  1. Both statements 1 and 2 are correct.
  2. Statement 1 is correct but statement 2 is incorrect.
  3. Statement 1 is incorrect but statement 2 is correct.
  4. Both statements 1 and 2 are incorrect.
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