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Home Q & A Board Science-Related Homework Help Physics
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Tsync Tsync
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8 years ago
Evidence of liquid water in Mars' distant past suggests that it had a substantial atmosphere compared to what it has presently. What happened to its water vapor?
A) Mars initially had such a large Greenhouse Effect that the atmosphere became quite hot and slowly escaped.
B) The carbon dioxide in its atmosphere dissolved in the water and combined with surface rocks.
C) The water vapor has frozen out into the polar ice caps and permafrost as Mars has cooled.
D) Its atmosphere was mostly hydrogen and helium. Mars' gravity is too weak to hold them.
E) It has now all been lost in space, including the carbon dioxide and water vapor.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
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#3
8 years ago
Message back if you need anything
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