Describe a simple barometer ?
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A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A simple barometer consists of a long glass tube (closed at one end, open at the other) filled with mercury and turned upside down into a container of mercury. ... As air pressure decreases, more of the mercury drains from the tube.
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Answer:
barometer is a device.
Explanation:
barometer measures the atmosphic pressure.
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