Question

All planets in the Solar System are categorized as inner or outer planets. Ariel and Manuel are making a poster with a list of general descriptions of the outer planets. So far, their poster looks like this:
What other statement can they add to their list?

A.
They all have rocky surfaces.

B.
They have few to no moons.

C.
They are mostly made of gas.

D.
They have small diameters.

Answer 1

Answer:

C

Explanation:

the outer ones are the gas giants; they're all huge and made of gas, as the name implies