Question

How long does it take the earth to make one revolution?

12 hrs.
24 hrs.
365 1/4 days
366 days during leap year

Answer 1

One revolution of Earth around the Sun takes one year (one day is one rotation around its own axis).

Now, our years last 365 or 366 days because the actual revolution does not last exact day: it is 365 1/4 days long.