Question

what is a leap year? How is it caused?​

Answer 1

Leap years are needed to keep our modern day Gregorian calendar in alignment with the Earth's revolutions around the sun. It takes the Earth approximately 365.242189 days – or 365 days, 5 hours, 48 minutes, and 45 seconds – to circle once around the Sun.

Answer 2

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$\huge{\red{\mathfrak{ANSWER:-}}}$

A leap year is a year in which an extra day is added to the Gregorian calendar, which is used by most of the world. While an ordinary yearhas 365 days, a leap year has 366 days. A leap year comes once every four years. Because of this, a leap year can always be evenly divided by four.

A leap year is a year which has an extra day. It was designed to keep the calendar in line with the seasons of the year. (The calendar year is based on the solar year, which is very close to 365_1/4 days long. The calendar year needs to have an integer number of days.)