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  1. A manometer is used to measure

    2. A.

     Earthquake
    B.

     Pressure
    C.

     Temperature
    D.

     Density

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    Answer : Option B

    Explanation :

    Manometers are precision instruments that are used to measure pressure, which is the force exerted by a gas or liquid per unit surface area owing to the effects of the weight of that gas or liquid from gravity.

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