Question

How atmospheric pressure changes at higher altitude​

Answer 1

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At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity, air pressure decreases rapidly at first, then more slowly at higher levels.

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Answer 2

At higher elevations there are fewer air molecules above a given surface than a similar surface at lower levels .

• Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity ,

• Air pressure decreases rapidly at first then more slowly at higher levels .