What was the source of the early atmosphere surrounding the Earth when it was about a billion years old?

0 votes
    condensation from the gas surrounding the Sun as the Earth cooled
     comets that collided with the early Earth
     outgassing from the planets interior from fissures, geysers, and volcanic eruptionss
     melting and sublimation of the young planets early icecapss
     evaporation of the earliest oceans on the planet due to heat from volcanic eruptions
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
outgassing from the planets interior from fissures, geysers, and volcanic eruptionss
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

Related questions




...