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Line 1: [[File:Kawasaki-Electric Fan.jpg\|thumb\|A [[wikt:fan\|fan]] moves air.]] '''Air''' is the [[Earth]]'s [[atmosphere]]. Air is a [[mixture]] of many gases and tiny dust particles. It is the clear [[gas]] in which living things live and [[breathe]]. It has an indefinite shape and [[volume]]. It has [[mass]] and [[weight]], because it is [[matter]]. The weight of air creates [[atmosphere pressure\|atmospheric pressure]]. There is no air in [[outer space]]. ~~'''~~ Atmosphere is a [[mixture]] of about 78% [[nitrogen]], 21% of [[oxygen]], and 1% other gases, such as Carbon Dioxide.

Air: Difference between revisions