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Of what two gases is earth's atmosphere mainly composed?

 
Cafe Meghan

Asked by Cafe Meghan at 1:26 PM on Aug. 18, 2010 in

Level 14 (1,375 Credits)
This question is closed.
Answers (8)
  • nitrogen and oxygen
    butterflyblue19

    Answer by butterflyblue19 at 1:29 PM on Aug. 18, 2010

  • Oxygen and Carbon dioxide.
    lovinangels

    Answer by lovinangels at 1:26 PM on Aug. 18, 2010

  • oxygen and hydrogen
    29again

    Answer by 29again at 1:27 PM on Aug. 18, 2010

  • Oxygen and Carbon Dioxide
    BradenIsMySon

    Answer by BradenIsMySon at 1:27 PM on Aug. 18, 2010

  • Oxygen and carbon dioxide
    sheli2007

    Answer by sheli2007 at 1:27 PM on Aug. 18, 2010

  • it's nitrogen and oxygen. . . my gut was so wrong.
    lovinangels

    Answer by lovinangels at 1:32 PM on Aug. 18, 2010

  • Nitrogen and Oxygen
    cynprz

    Answer by cynprz at 1:46 PM on Aug. 18, 2010

  • Nitrogen and Oxygen
    LoriKeet

    Answer by LoriKeet at 1:48 PM on Aug. 18, 2010

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