2. Questions Bank
  3. 9th Class
  4. Science
  5. Natural resources

9th Class Science Natural resources Question Bank Natural Resources

  • question_answer
    Which one of the following is not a cause of ozone depletion?

    A) Oxides of nitrogen

    B) Oxides of sulphur dioxide

    C) CFCs

    D) All the above

    E) None of these

    Correct Answer: E

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