This gas began to accumulate between 3 and 2.5 billion years ago.
A) hydrogen
B) oxygen
C) methane
D) ammonia
E) carbon dioxide
Correct Answer:
Verified
Q42: The first fossil remains are from this
Q43: The first diverse animal world appeared during
Q44: Where are MOST fossils found?
A) igneous rock
B)
Q45: The half-life of an isotope is 5,000
Q46: Where would the most lead be found
Q48: Miller and Urey demonstrated the formation of
Q49: Which of these is most likely to
Q50: All of the following are TRUE of
Q51: The half-life of uranium-238 is 4.5 billion
Q52: Which period contains the present day?
A) Tertiary
B)
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