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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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naturelle naturelle
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7 years ago
The percentages of various gases in the atmosphere indicate that the composition of the atmosphere is controlled 
A)  totally by the amount and type of gases given off during volcanic eruptions. 
B)  totally by the composition of comets and meteors that strike Earth. 
C)  to a significant extent by biological processes occurring on Earth. 
D)  exclusively by chemical reactions between sunlight and the gases in the atmosphere.
Textbook 
Geosystems: An Introduction to Physical Geography

Geosystems: An Introduction to Physical Geography


Edition: 7th
Author:
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twentytootwentytoo
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7 years ago
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naturelle Author
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7 years ago
Just got feedback from my professor, thanks for answering correctly
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