SOLAR SYSTEM

Detailed explanation-1: -The four inner terrestrial planets are dense compared to the four outer planets. The inner planets are made up mainly of dense, solid rock. The outer planets are composed primarily of gas, so their overall density is lower. However, they are larger in size and much more massive!

Detailed explanation-2: -Terrestrial planets are formed close to Sun where it was too warm for gases to condense to solid particles; only rocky particles remain. The solar wind was most intense near the sun, so it blew off lighter particles materials from terrestrial planets.

Detailed explanation-3: -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-4: -Mercury is a rocky planet, also known as a terrestrial planet. Mercury has a solid, cratered surface, much like the Earth’s moon.