SOLAR SYSTEM

Detailed explanation-1: -The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.

Detailed explanation-2: -The Inner Planets The four innermost planets in the Solar System (Mercury, Venus, Earth, and Mars) are sometimes called the “terrestrial” planets because of their proximity to Earth ("Terra” in Latin) and their similarity as compact solid bodies with rocky surfaces.

Detailed explanation-3: -) In contrast, the four outer planets, also called the Jovian, or giant, planets-Jupiter, Saturn, Uranus, and Neptune-are large objects with densities less than 2 grams per cubic cm; they are composed primarily of hydrogen and helium (Jupiter and Saturn) or of ice, rock, hydrogen, and helium (Uranus and Neptune).…

Detailed explanation-4: -Mercury was named after the Roman god of travel. Venus was named after the Roman goddess of love and beauty. Mars was the Roman god of War.

Detailed explanation-5: -Gas Giants in Our Solar System: Which Planets are Gas Giants? The inner four planets, also known as terrestrial planets, are Mercury, Venus, Earth, and Mars. The outer four planets, also known as gas giants, are Jupiter, Saturn, Uranus, and Neptune.

Detailed explanation-6: -Explanation: Mercury, Venus, Earth and Mars are called as the inner planets as they lie between the Sun and the belt of Asteroids, The other five planets are called the outer planets.