Question 14
The Earth and Solar SystemWhich of the following distinguishes rotation from revolution?
- A.The earth rotates on its axis while it revolves round the sun on an elliptical orbit.
- B.Revolution causes day and night while rotation causes season.
- C.A complete revolution takes 24 hours while rotation marks a year.
- D.Rotation causes variation in the lengths of day and night while revolution causes rising and falling of tides.
Show the answer and explanation
Answer: A (The earth rotates on its axis while it revolves round the sun on an elliptical orbit.)
Explanation
Rotation is spinning on the axis (one day); revolution is moving round the sun in an elliptical orbit (one year).