Author Question: The most abundant gases in the earth's atmosphere are: a. nitrogen, oxygen, argon and water vapor. ... (Read 149 times)

CBme

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The most abundant gases in the earth's atmosphere are:
 a. nitrogen, oxygen, argon and water vapor.
 b. carbon dioxide, water vapor and ozone.
 c. nitrogen, hydrogen and carbon dioxide.
 d. carbon dioxide and oxygen.

Question 2

The earth's atmosphere receives ________ of the sun's total energy output.
 a. about 25
 b. about 50
 c. a very small fraction
 d. about 80



scottmt

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Answer to Question 1

a

Answer to Question 2

c



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