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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-11

  • question_answer
    When air is filled in a closed container, it _____on the wall of the container.

    A) Exerts pressure

    B) Does not exert pressure

    C) Increases temperature

    D) All of these

    E) None of these

    Correct Answer: A

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