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The Atmosphere

By Rebecca Woodbury PH D
Paperback
$12.68
By Rebecca Woodbury PH D
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The atmosphere is the part of Earth that contains the air we breathe. It extends 60 miles (97 km) above the surface of Earth and is made up of different gas molecules. (Molecules and atoms are defined.) The atmosphere is made up of nitrogen, oxygen, argon, carbon dioxide, and water vapor gases as well as small amounts of other gases. When you breathe, all the gases in the air go into your lungs. Your body uses the oxygen, and the other gases just go in and out of your lungs. Special cells i...