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30 April, 18:02

What is a barometer?

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Answers (2)
  1. 30 April, 18:21
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    A barometer is an instrument used to measure air pressure. A barometer is a tube with mercury inside of it. It's open on one end and closed on another and the weight of the air pushes on the mercury inside of the tube.
  2. 30 April, 18:23
    0
    A barometer is an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
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