Preview
Description
As Earth cools, water in the atmosphere condenses: torrential rains fall on, and on, and on. Great seas form. Exuberant volcanoes expel hotly agitated deep earth to the surface.
The hot, early atmosphere dances with an abundance of carbon dioxide, nitrogen, and water, and lesser amounts of methane and ammonia. Intense energy sources available on the primitive Earth form biologically important molecules from these gases. Candidate sources include solar UV-radiation (there is as yet no UV-protective ozone shield), radioactivity, and hot oceanic vents.
Date Created
1997
Holding Institution
University of Montana--Missoula. Environmental Studies Program
Rights Statement
Rights Holder
© 1997 Stiftung Drittes Millennium
Item Type
Exhibit
Digital File Format
image/jpeg
Media Type
Text; Image
Digital Image Number
08_wtt_file01_1-19.jpg
Recommended Citation
Liebes, Sid; Mittelstadt, Laurie; Waugh, Barbara; and Brynes, Lois, "Panel 08: The Rains Reign" (1997). A Walk Through Time - From Stardust To Us. 8.
https://scholarworks.umt.edu/awalkthroughtime/8