how are the outer planets similar?
A. They have solid surfaces
B. They are about the same size
C. They have atmospheres that are mostly hydrogen

Respuesta :

The Answer Is C. Because The Outer Plants Have A Atmosphere And No Oxygen Witch Means It Has Hydrogen .

Answer:

C.) They have atmospheres that are mostly hydrogen.

Unlike the Inner Planets, the Outer Planets are made up of hydrogen and helium mostly. The elements are the main property of the planets' atmospheres. This is why the Outer Planets are commonly known as "Gas Giants."

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