What is a barometer?

2 answers:

8 0

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.

charle [14.2K]3 years ago

5 0

A barometer is an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.

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