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

Answer:

The atmosphere is the layer of gas that surrounds Earth. It is often called air. Other planets, and some of their larger moons, also have atmospheres.

The atmosphere is the layer of gas that surrounds Earth. It is often called air. Other planets, and some of their larger moons, also have atmospheres.The atmosphere consists of several different gases. The gases are held close to Earth by a force called gravity. Near Earth’s surface, the atmosphere is about three-fourths nitrogen and one-fifth oxygen. At higher elevations, the atmosphere is mostly hydrogen and helium.

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