User:Milton Beychok/Sandbox: Difference between revisions
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{{main|Earth's atmosphere}} | {{main|Earth's atmosphere}} | ||
{{Image|Clean Air.jpg|right|261px|Landscape with clear air and and clouds}} | {{Image|Clean Air.jpg|right|261px|Landscape with clear air and and clouds}} | ||
'''Air''' | '''Air''' is a colorless, odorless and tasteless mixture of [[gas]]es consisting mostly of [[nitrogen]] (N<sub>2</sub>) and [[oxygen]] (O<sub>2</sub>). It is the part of [[Earth's atmosphere]] that [[human]]s and all other [[animal]]s breathe in order to obtain the oxygen needed to sustain [[life]]. | ||
Revision as of 01:09, 11 March 2010
This article is about Air. For other uses of the term Air, please see Air (disambiguation).
Air is a colorless, odorless and tasteless mixture of gases consisting mostly of nitrogen (N2) and oxygen (O2). It is the part of Earth's atmosphere that humans and all other animals breathe in order to obtain the oxygen needed to sustain life.