Question

why do leap year come every for year​

Answer 1

Answer:

because earth is revolving round the earth

Answer 2

Answer:

Blame Earth's orbit around the sun, which takes approximately 365.25 days. It's that . 25 that creates the need for a leap year every four years. ... During leap years, a leap day is added to the calendar to slow down and synchronize the calendar year with the seasons.