Question

what is Atmosphere ?​

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

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An atmosphere is the layers of gases surrounding a planet or other celestial body. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.

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