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    Question

    Why does a needle float on the surface of water if

    placed very carefully?
    A Density Correct Answer Incorrect Answer
    B Surface Tension Correct Answer Incorrect Answer
    C Buoyancy Correct Answer Incorrect Answer
    D Viscosity Correct Answer Incorrect Answer

    Solution

    Explanation: Cohesive forces between liquid molecules create a "film" on the surface that can support light objects

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