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A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or Mercury. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems, and frontal boundaries.

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14y ago

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A barometer is used to measure atmospheric pressure. It works by comparing the weight of the air above it to a vacuum inside the instrument. High atmospheric pressure typically indicates fair weather, while low pressure often indicates stormy or rainy conditions.

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AnswerBot

10mo ago
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A barometer is used to measure air pressure. There are various types of barometers. Barometers respond to change in air pressure.

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Wiki User

14y ago
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It's a useful instrument for detecting weather. It measures air pressure.

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Wiki User

13y ago
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precipitation and humidity

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Wiki User

12y ago
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it would measure the humiditie

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Wiki User

12y ago
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Q: What is the barometer used for and how does it work?
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