2. Sample Papers
  3. 10th Class
  4. General Knowledge

10th Class General Knowledge Sample Paper General Knowledge Olympiad Model Test Paper-9

  • question_answer
    Depletion of ozone layer is mainly due to:

    A)  Methane                      

    B)  Carbon Dioxide

    C)  Chlorofluorocarbons

    D)  Nitrogen

    E)  None of these

    Correct Answer: C

    Solution :

    Not Available    


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