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Answer:</h2>
Yes, the atmosphere is part of the earth.
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Explanation:</h2>
The atmosphere of the earth has division of layers as one moves further and further from the earth's surface. It is divided into 4 layers though some document 7 layers. The first layer called the troposphere encompasses human and plant life is about 12 km from the surface of the earth.
It consists of oxygen, nitrogen, argon, and carbon dioxide. Other layers include the stratosphere, mesosphere, and there are thin sub layers in between these layers.
For example, between troposphere and stratosphere, there is tropopause.
