Question

define atmospheric pressure.
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Answer 1

Answer:

atmospheric pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area).

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Answer 2

Atmospheric pressure can be defined as the force surrounded by an area pushed against a surface by the weight of the atmosphere of Earth, a layer of air.

• This air or atmospheric pressure plays an essential role in climate and weather.

• The difference in this air or atmospheric pressure results in the direction of the flow of wind and also brings considerable changes in climate or weather.
• This pressure from the atmosphere is caused by the gravitational force on the gases from the atmosphere above the surface.
• The unit by which atmospheric pressure is measured in Pascal(Pa).