Answer:
We all know that the characteristics are proven, not just an opinion, because they meet the correct standards. The four inner planets are formed of rock and metal and have shorter orbits, slower rotation, and no rings. The four outer planets have longer orbits and spins, as well as a composition of gases and liquids, as well as a large number of moons and rings. The outer planets are known as gas giants because they are comprised of hydrogen and helium.
