Multiple Choice
Why do lunar scientists think the surface of the Moon was once a magma ocean?
A) The surface of the Moon is entirely volcanic.
B) Early lunar craters show a morphology suggesting impact with a liquid.
C) The lunar highlands contain large amounts of the rock anorthosite, which is the light material that "floated" on the top of the magma ocean.
D) None of these is correct.
Correct Answer:

Verified
Correct Answer:
Verified
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