SOLAR SYSTEM

Detailed explanation-1: -From top: Mercury, Venus, Earth and Mars. 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: -Mercury. One day on Mercury lasts almost 59 Earth days! Of all the planets, Mercury orbits closest to the sun.

Detailed explanation-3: -The Inner Planets: Mercury: Mercury is the smallest planet in our Solar System and also the closest.

Detailed explanation-4: -Summary: The terrestrial planets formed close to the Sun where temperatures were well suited for rock and metal to condense. The jovian planets formed outside what is called the frost line, where temperatures were low enough for ice condensation.

Detailed explanation-5: -A terrestrial planet, telluric planet, solid planet, or rocky planet, is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun: Mercury, Venus, Earth and Mars.