Question

what is atmosphere? and what is air pressure? ​

Answer 1

Answer:

the envelope of gases surrounding the earth or another planet is called atmosphere. ir pressure is the weight of air molecules pressing down on the Earth. The pressure of the air molecules changes as you move upward from sea level into the atmosphere.  pls mark me the brainliest and follow

Explanation:

Answer 2

Answer:

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. In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes.

Explanation:

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