Respuesta :

suppercrystal13

Answer:

"Outer" planets are also called gas giants because they are large planets that have deep, massive atmospheres made mostly of gas.

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Hope this helps :)

superpowergirl
Outer planets are also called gas giants because they are much larger than Earth and the other inner planets, and because they are made primarily of gases and liquids rather than solid matter, the outer planets are also called gas giants.