Question

Why do we have a leap year every four years?

• A. The Earth gets shifted out of orbit every four years
• B. The revolution slows down a little once in every four years
• C. The length of a year is not an integer number of days
• D. It is a convention

Answer 1

The correct option is C The length of a year is not an integer number of days

The concept of a leap year is basically a corrective measure as the length of a year is not 365 days, but about 365.25 days. This is adjusted in our length of a year every 4 years when 1 more day is added to the month of February.