Multiple choice

About how long does it take Earth to make one complete revolution?

  1. 60 minutes

  2. 24 hours

  3. 180 days

  4. 365.25 days

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Earth takes about 365.25 days to complete its orbit around the Sun. The extra quarter of a day is accounted for by adding a leap day every four years to keep our calendar aligned with the seasons.