Earths original atmosphere consisted of gases expelled from within the planet during a process known as ____________.

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     venting
      exhalation
      outgassing
      intrusion
      expulsion
asked Jun 13, 2012 in Geography by anonymous
    

1 Answer

0 votes
outgassing
answered Jun 15, 2012 by Geodude ~Top Expert~ (9,680 points)



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