Question

how does a leap year occurs​

Answer 1

Answer:

the earth takes 365 1/4 days to complete its revolution around the sun so after every four years 1 day extra would come

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Answer 2

Explanation:

leap year occur after every four years .it means an extra day which is 29thin the month of february is added after everything four years. The reason behind this isearth revolve around the sun for approximately365.25daysto make sure that a calendar year is same as tropical year(which is the period of earths revolution there needs to be ofan extra day after every four years and also the leap years should be divisible by4