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Question

Which instrument is used to measure Earth's atmospheric pressure?

A
Barometer
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B
Pressure meter
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C
Micrometer
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D
Gaugemeter
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Solution

The correct option is A Barometer
An instrument that helps to measure Earth’s air pressure is the barometer. It is an inverted glass tube immersed in mercury. The height to which the mercury rises depends on pressure that mercury experiences.

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