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3rd Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    Which of the following activities leads to water pollution?
    1. Discharging dirty water from factories and industries into rivers.
    2. Throwing of household garbage into rivers.
    3. Washing of clothes into rivers.

    A) 1, 2 and 3

    B) 1 and 2

    C) Only 2

    D) Only 3

    E) None of these

    Correct Answer: A

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