Fill in the blanks:
i. ________ is the longest day and has the shortest night in the northern hemisphere.
ii. _____ marks the longest day and the shortest night in the southern hemisphere.
iii. On the _____ the duration of day and night is the same throughout the year.
iv. The occurrence of seasons one after the other leads to the ______.
v. Agricultural seasons also depend on the local ________ conditions.