Multiple Choice
The reason leap years have an extra day is to account for the fact that:
A) Earth's rotation period is slowly increasing because of tidal effects.
B) the year is not exactly equal to an integral number of days.
C) the day is not exactly 24 hours because of Earth's periodically varying rotation period.
D) the length of the year varies with a period of 4 years because of precession.
Correct Answer:
Verified
Correct Answer:
Verified
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