Multiple Choice
What is the MOST probable heat source that produced extensive, maybe even total, melting of the Moon at an early stage in its history?
A) nuclear fusion reactions occurring in its core
B) intense sunlight from the early and very active Sun
C) tidal flexing and distortion caused by its motion around Earth
D) the impact energy of meteoritic bombardment
Correct Answer:
Verified
Correct Answer:
Verified
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