Which of these is largest : astronomical unit, light year and par sec ?

Define Astronomical unit, light year and parsec.

Which is the largest unit out of astronomical unit, light year and Parsec ?

What is astronomical unit?

Define astronomical unit.

How many light years make 1 par sec ?

Which of these unit is lasrgest: AU, light year and parsec. Express the average distance of earth from the sun in (i) light year (ii) per sec.

Define - Astronomical unit?

Astronomical unit is the unit of