Atmospheric and hydrospheric evolution on the primitive earth. Both secular accretion and biological and geochemical processes have affected earth's volatile envelope.
D005075:Biological Evolution; D002245:Carbon Dioxide; D055593:Geological Phenomena; D005844:Geology; D000069497:Origin of Life; D010100:Oxygen; D010788:Photosynthesis
D002245:Carbon Dioxide; D010100:Oxygen