2. Sample Papers
  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Olympiad Model Test Paper-19

  • question_answer
    Ozone hole is formed because of:

    A) Destruction of oxygen gas in the exosphere

    B) Thickening of ozone layer in the stratosphere

    C) Destruction of ozone gas in the ozone layer

    D) Destruction of nitrogen and oxygen gas in the atomsphere

    E) None of these

    Correct Answer: C

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