6th Class General Knowledge Sample Paper General Knowledge Olympiad Model Test Paper-3

  • question_answer
    Threat of global warming is increasing day by day due to increasing concentration of:

    A)  Sulphur dioxide

    B)  Nitrous oxide

    C)  Carbon dioxide

    D)  Ozone

    E)  None of these

    Correct Answer: C

    Solution :

    Not Available    


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