Final answer:
Terrestrial planets like Mercury, Venus, Earth, and Mars have solid, rocky surfaces, while Jovian planets like Jupiter and Saturn are predominantly composed of gases.
Explanation:
Terrestrial planets
The terrestrial planets in our Solar System, Mercury, Venus, Earth, and Mars, have solid, rocky surfaces and metal cores covered by rock. They are smaller, less massive, and closer to the Sun compared to the gas giants. Terrestrial planets have thin atmospheres with few moons or rings.
Jovian planets
The Jovian planets, often referred to as gas giants, include Jupiter and Saturn. They are predominantly composed of hydrogen and helium. Unlike terrestrial planets, Jovian planets have no solid surfaces but are mainly gaseous. Ice giants like Uranus and Neptune are distinct from Jovian planets.
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