Answer: Heyo :)
(1) Maybe g oogle that one, im not sure
(2) march 21: celestial equator; june 21st ;Tropic of Cancer september 23rd; celestial equator; December 23rd: the Tropic of Capricorn
(3) in a leap year, we add an extra day in February (making it 29 days instead of 28). What goes around: The reason we have February 29 every four years is because of two different time cycles involved with the rotation of the Earth.
Step-by-step explanation:
insp: nightmhares on brain.ly