what is atmospheric pressure due to? what is its role
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Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
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- atmospheric pressure is also known as barometric pressure caused by the weight of air molecules above the atmosphere.
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