Multiple Choice
All the following statements are true.Which one explains why our calendar has leap years?
A) Earth's axis precesses with a period of about 26,000 years.
B) There is a difference between a sidereal year and a tropical year.
C) A tropical year is slightly more than 365 days.
D) Earth's speed varies as it orbits the Sun.
Correct Answer:

Verified
Correct Answer:
Verified
Q12: Choose the appropriate star from Table S1.1
Q13: For the following questions,refer to Figure S1.2,which
Q14: The three bright stars that make up
Q15: Suppose it is January and the Sun
Q16: The average length of a solar day
Q18: Each of the following lists a constellation
Q19: For the following questions,refer to Figure S1.2
Q20: For the following questions,refer to Figure S1.1,which
Q21: Our calendar has leap years because<br>A)there is
Q22: Suppose you live at the equator.Describe the