define atmospheric pressure
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Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
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Atmospheric pressure iq the pressure that is exerted on the surface of the earth because of its weight. There is a close relationship between pressure and temperature .
High temperature means low pressure and low temperature means high pressure. Atmospheric pressure is measured by barometer.
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