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9 votes
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The length of an Earth year is based on Earth's

a. rotation of 15 degrees/hour
b. revolution of 15 degrees/hour
c. rotation of approximately 1 degree/day
d. revolution of approximately 1 degree/day

User Mdhirsch
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2 Answers

22 votes
22 votes

Final answer:

The length of an Earth year is based on Earth's revolution of approximately 1 degree/day, which takes about 365.2422 solar days to complete.

Step-by-step explanation:

The length of an Earth year is based on Earth's revolution of approximately 1 degree/day.

The Earth revolves around the Sun in an elliptical orbit. It takes approximately 365.2422 solar days for the Earth to complete one revolution around the Sun, which is known as a tropical year. This is the basis for our calendar year.

During this revolution, the Earth moves approximately 1 degree along its orbit each day, resulting in the change of seasons and the length of a year.

User Jason Lee
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7 votes
7 votes

Answer:D

Step-by-step explanation:

User Jerelyn
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