explian the structure of atmosphere??
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Structure The Atmosphere is divided into layers according to major changes in temperature. Gravity pushes the layers of air down on the earth's surface. This push is called air pressure. 99% of the total mass of the atmosphere is below 32 kilometers. Troposphere - 0 to 12 km - Contains 75% of the gases in the atmosphere.
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Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and 0.93% argon. The remainder, less than 0.1%, contains such trace gases as water vapor, carbon dioxide, and ozone.
The five layers of atmosphere are:-
These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere and exosphere.
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