Multiple Choice
If astronauts set up a permanent settlement at Tranquility Base on the Moon, how many times each year would Earth rise and set as seen by a resident of this base?
A) 13 times each year
B) once each year
C) never-Earth would remain essentially motionless in the sky.
D) 12 times each year
Correct Answer:

Verified
Correct Answer:
Verified
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