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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-18

  • question_answer
    Which one of the following steps will help us in prevention of soil pollution?

    A) The use of polyethylene bags should be avoided.

    B) The use of pesticides in agriculture should be minimized.

    C) Used plastic and metal objects should be sent to factories for recycling.

    D) All of these

    E) None of these

    Correct Answer: D

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