The original atmosphere of Earth is thought to have been rich in
a. CO2, N2, H2, H2S, and CO.
b. CO2, N2, O2, Ar, and Ne.
c. CO2, N2, O2, Rn, and Ne.
d. CO2, N2, H2, Kr, and Xe.
Ans: a. CO2, N2, H2, H2S, and CO.
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a. 3 b. 2 c. 1 d. 5 e. 4
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Which of the first three statements about
independent assortment is NOT true?
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