Question

which of the following is not a unit of time?
1) Lunar month
2) Leap year
3) Parallactic second
4) Solar day

PLEASE ANSWER.

Answer 1

parallactic sec is the answer

Answer 2

Answer:answer is (c) because parallactic second is the unit of length.which we also say as parsec.

It is used to measure large distance like moon and earth and other celestial bodies.So,parallactic second is the distance it mean length

May be it helpful

Explanation: