Difference between revisions of "Air"
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| − | Air is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen, 21% oxygen, 0.97% argon, 0.04% carbon dioxide, and trace amounts of other gases, in addition to water vapor. It is also what keeps us alive. | + | |
| + | '''Air''' is a layer of [[materials|gases]] surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen, 21% oxygen, 0.97% argon, 0.04% carbon dioxide, and trace amounts of other gases, in addition to water vapor. It is also what keeps us alive. | ||
[[Category:Materials]] | [[Category:Materials]] | ||
Revision as of 14:56, 23 October 2019
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Air is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen, 21% oxygen, 0.97% argon, 0.04% carbon dioxide, and trace amounts of other gases, in addition to water vapor. It is also what keeps us alive.
