Question

What is Atmosphere??​

Answer 1

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An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.

Answer 2

Atmosphere is a thin layer of gas surround the earth, contains oxygen,carbon dioxide, Nitrogen and etc.