Question

Why do the outer planets in the Solar System have much longer year lengths than the inner planets?
A) The outer planets are bigger than the inner planets.
B) The outer planets spin much faster than the inner planets.
C) The outer planets have longer day lengths than the inner planets.
D) The outer planets have longer orbital paths than the inner planets.

Answer 1

D) The outer planets have longer orbital paths than the inner planets. 

Answer 2

The answer is D because the have a longer way to travel around the sun so it takes longer to get around