Multiple Choice
Microfossil evidence suggests that life
A) originated when the Earth formed 4.6 billion years ago
B) originated about 3.0 billion years ago
C) existed 3.85 billion years ago
D) existed before about 3.0 billion years ago and may well have existed before 3.5 billion years ago
Correct Answer:
Verified
Correct Answer:
Verified
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