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Intercalation: Quiz

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Question 1: ________ may require intercalations of both days and months.
Islamic calendarGregorian calendarByzantine calendarLunisolar calendar

Question 2: The ________ does not have a whole number of days (it is about 365.24 days), but a calendar year must have a whole number of days.
Universal TimeTropical yearTimeLongitude

Question 3: In solar calendars, this is often done by adding to a common year of 365 days, an extra day ("leap day" or "intercalary day") about every four years: this makes a ________ of 366 days.
Julian calendarLeap yearGregorian calendarIslamic calendar

Question 4: The solar year does not have a whole number of lunar months (it is about 12.37 lunations), so a lunisolar calendar must have a variable number of ________ in a year.
Gregorian calendarJulian calendarMonthIslamic calendar

Question 5: In the Julian Calendar, as well as in the ________, which improved upon it, intercalation is done by adding an extra day to February in each leap year.
TimeGregorian calendarIslamic calendarByzantine calendar







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