Final answer:
The inner planets are terrestrial planets consisting of Mercury, Venus, Earth, and Mars, which are small, dense, solid, and rocky, while the outer planets, including Jupiter, Saturn, Uranus, and Neptune, are gas giants made primarily of gases and liquids.
Explanation:
The Inner Planets: Mercury, Venus, Earth, and Mars
The inner planets, also known as terrestrial planets, are small, dense, solid, and rocky. They are located closer to the Sun and have shorter orbits. None of them have rings, and they are geologically active.
The Outer Planets: Jupiter, Saturn, Uranus, Neptune
The outer planets, also called gas giants or Jovian planets, are much larger than the inner planets. These planets are primarily made of gases and liquids. They are located farther from the Sun compared to the inner planets.
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