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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    Two completely filled water bottles are turned upside down, two rubber tubes are connected at the mouth of the bottles. How the water will be released fast through connected rubber tubes?

    A) By putting them into cold water

    B) By punching on the rubber tubes

    C) By punching on the bottles

    D) All of these

    E) None of these

    Correct Answer: C

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