2. Questions Bank
  3. 8th Class
  4. Science
  5. Pollution of Air and Water

8th Class Science Pollution of Air and Water Question Bank Pollution of Air and Water

  • question_answer
    Which of the following is responsible for the depletion of ozone layer which protects us from harmful ultraviolet radiations?

    A) Nitrogen

    B) Oxygen

    C) Nitrogen oxide

    D) Chlorofluorocarbons

    E) None of these

    Correct Answer: D

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