Question

☯️what is atmosphere??????????
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Answer 1

An atmosphere is a layer of gas or layers of gases that envelope a planet or other material body, which is held in place by the gravity of that body. A planet retains an atmosphere when the gravitational force is high and the temperature of the atmosphere is low.

Answer 2

Explanation:

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❄An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.❄