What is a leap year and why are they necessary?

Answer 1

The real, or astronomical, year has a length of a little less than 365.25 days. To have a full number of days in a year, the length of the year is usually set at 365, and every 4 years, an extra day is added. Thus, on average, the length of the calendar year matches the astronomical year; an important astronomical event like the Spring equinox (for the Northern Hemisphere) will maintain its date - approximately - at March 20 or 21.

The real, or astronomical, year has a length of a little less than 365.25 days. To have a full number of days in a year, the length of the year is usually set at 365, and every 4 years, an extra day is added. Thus, on average, the length of the calendar year matches the astronomical year; an important astronomical event like the Spring equinox (for the Northern Hemisphere) will maintain its date - approximately - at March 20 or 21.

The real, or astronomical, year has a length of a little less than 365.25 days. To have a full number of days in a year, the length of the year is usually set at 365, and every 4 years, an extra day is added. Thus, on average, the length of the calendar year matches the astronomical year; an important astronomical event like the Spring equinox (for the Northern Hemisphere) will maintain its date - approximately - at March 20 or 21.

The real, or astronomical, year has a length of a little less than 365.25 days. To have a full number of days in a year, the length of the year is usually set at 365, and every 4 years, an extra day is added. Thus, on average, the length of the calendar year matches the astronomical year; an important astronomical event like the Spring equinox (for the Northern Hemisphere) will maintain its date - approximately - at March 20 or 21.

Answer 2

The real, or astronomical, year has a length of a little less than 365.25 days. To have a full number of days in a year, the length of the year is usually set at 365, and every 4 years, an extra day is added. Thus, on average, the length of the calendar year matches the astronomical year; an important astronomical event like the Spring equinox (for the Northern Hemisphere) will maintain its date - approximately - at March 20 or 21.

Answer 3

there really no good answer tho that but my best answer is because people are crasy.

Answer 4

A leap year is a year that occurs on the olympic years having one more day in febuary. It is necassery as we have 364 and 1/4 days so every four years we need one more day