Define air pressure?
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The pressure exerted by air on all bodies at all times in all directions is called air pressure.
When air moves at high speeds, it creates a low pressure area.
The air inside a balloon exerts pressure in all directions, and makes it blow up.
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That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer. ... Meteorologists describe the atmospheric pressure by how high the mercury rises.
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