Multiple Choice
Why is there a 4-minute difference between the solar day and the sidereal day?
A) because the Earth's rotation is variable, due to the pull of the Moon
B) because the stars slowly change their orientations in the Galaxy
C) because the Earth is going around the Sun in the course of a year
D) because the Earth's axis is tilted by about 23 degrees
E) no one knows the reason; we just have to accept the difference as an unsolved mystery
Correct Answer:
Verified
Correct Answer:
Verified
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