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3rd Class Science Sample Paper Science Olympiad Model Test Paper-10

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

    A) Chemical wastage should not be disposed in the water bodies

    B) The water bodies should not be connected with dirty drains

    C) Garbage should not be thrown in rivers

    D) All of these

    E) None of these

    Correct Answer: D

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