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5th Class Science Our Environment Question Bank Self Test-9

  • question_answer
    Which of the following is directly and indirectly related to air pollution?

    A) (a) Green house effect

    B) (b) Disturbance in ecological balance

    C) (c) Global warming

    D) (d) Melting of polar ice caps

    E) (e) All of these 

    Correct Answer: E

    Solution :

    (e)


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