Which of the following characteristics do all of the outer planets have in common?

A.
They lack moons.

B.
They are small and dense.

C.
They have liquid cores.

D.
They are mostly made up of hydrogen and helium.

Question

Which of the following characteristics do all of the outer planets have in common?	
 
 A.
They lack moons.
 
 B.
They are small and dense.
 
 C.
They have liquid cores.
 
 D.
They are mostly made up of hydrogen and helium.

bookworm14 · Answer

what do you think it is? :) (I know the answer just want to see if you know it)

bookworm14 · Answer

well the inner planets are the "rocky" planets because they have rocky cores. They are seperated from the outer planets by the asteroid belt. The outer planets are called the gaseous planets because their cores and atmospheres are made up of gases. 

do you have an answer now? :)

anonymous · Answer

D. made up of hydrogen and helium..... Outer planets have the most moons in the solar system, outer planets are the biggest planets in the solar system and all outer planets are freezing and rocky... Common knowledge..

bookworm14 · Answer

@rayisamazing889  that was a great answer....until you wrote "common knowledge" at the end. I personally am not insulted, but it could be a different case for others who read this. If it was such common knowledge, then people would not have questions about it. I know you did not have sarcastic intentions, but please take into consideration the feelings of others. ~Bree and the OS team $\color{red}{\Huge\ddot\smile}$