rocky101 rocky101
  • 03-10-2014
  • Health
contestada

this gas makes up close to one fourth of the air surrounding earth

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AL2006
AL2006 AL2006
  • 03-10-2014
Welllll, it's not really that close to one fourth.

One fourth is 25%.

The closest one is oxygen, which comprises about 18% of the air.
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jonericfogg
jonericfogg jonericfogg
  • 04-10-2014
Oxygen makes up about 21% of the earth's atmosphere and 78% is nitrogen with 1% other gases
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