Multiple Choice
The oxygen in Earth's atmosphere
A) was manufactured inside stars.
B) was added to the atmosphere by plant life.
C) has grown more abundant since the origin of Earth.
D) was manufactured inside stars, was added to the atmosphere by plant life, and has grown more abundant since the origin of Earth.
E) None of the other choices are correct.
Correct Answer:
Verified
Correct Answer:
Verified
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