Multiple Choice
Which of the following gases was not part of Earth's original atmosphere?
A) carbon dioxide
B) oxygen
C) nitrogen
D) water vapor
E) both A and C
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q22: Many of the most ancient fossils are
Q54: The major source of free oxygen in
Q57: _are the dominant land plants of the
Q58: As they formed, due to their high
Q60: The_ period was a time of major
Q62: The beginning of the_ era is marked
Q63: Which type of bacteria thrives in environments
Q64: The sun in the making is known
Q73: Extensive deposits of _ ore are found
Q75: What were the three gases that made