Multiple Choice
What is a transient lunar phenomenon?
A) It refers to those few times during the year that libration brings an unusual view of a small section of the back side of the Moon.
B) It refers to a comet impact that results in a plume of water.
C) The reference is to the Heavy Bombardment Era in the Moon's past.
D) This occurs when a body with a 10-cm diameter, or so, strikes the Moon's surface and emits enough light to be seen from Earth.
Correct Answer:

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Correct Answer:
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