An Earth year is the length of time it takes for
Earth to rotate once on its axis the Moon to revolve once around Earth the Sun to revolve once around Earth Earth to revolve once around the Sun
Question: An Earth year is the length of time it takes for
A. Earth to rotate once on its axis
B. the Moon to revolve once around Earth
C. the Sun to revolve once around Earth
D. Earth to revolve once around the Sun
Answer: