Multiple Choice
When were the Moon's highlands formed?
A) During the early heavy bombardment era (around 4.5 billion years ago)
B) During the final epoch of heavy bombardment (around 4.0-3.8 billion years ago)
C) During the time of the dinosaur extinction (around 250 million years ago)
D) None of these
Correct Answer:

Verified
Correct Answer:
Verified
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