Question

When astronomers determined that there are about 365.25 days in a year, they corrected this by

a. adding an extra two days every year
b. adding an extra day every two years
c. adding an extra day every four years
d. adding an extra day at the end of the year

Answer 1

It’s c adding an extra day every four days

Answer 2

C. adding an extra day every 4 years