a) what is a leap year? and how?
Answers
Answer:
A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) added to keep the calendar year synchronized with the astronomical year or seasonal year.
Explanation:
Because astronomical events and seasons do not repeat in a whole number of days, calendars that have a constant number of days in each year will unavoidably drift over time with respect to the event that the year is supposed to track, such as seasons. By inserting (called intercalating in technical terminology) an additional day or month into some years, the drift between a civilization's dating system and the physical properties of the solar system can be corrected. A year that is not a leap year is a common year.
For example, in the Gregorian calendar, each leap year has 366 days instead of 365, by extending February to 29 days rather than the common 28. These extra days occur in each year which is an integer multiple of 4 (except for years evenly divisible by 100, but not by 400). The leap year of 366 days has 52 weeks and two days, hence the year following a leap year will start later by two days of the week.
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Answer:
A leap year is a phenomenon that happens every four years.
Explanation:
Each year consists of 365 days and 6 hours or 1/4 of a day. Each year the 6 hours are added and on the fourth year, the 6 hours added account for an extra one day, which will be the 29th of February of that year. Only during a leap year will February have 29 days and that year will have 366 days