GENERAL KNOWLEDGE

Detailed explanation-1: -Jupiter, Saturn, Uranus, and Neptune are known as the Jovian (Jupiter-like) planets, because they are all gigantic compared with Earth, and they have a gaseous nature like Jupiter’s–mostly hydrogen, with some helium and trace gases and ices.

Detailed explanation-2: -The Outer Planets These planets are much larger than the inner planets and are made primarily of gases and liquids, so they are also called gas giants or Jovian planets. The gas giants are made up primarily of hydrogen and helium, the same elements that make up most of the Sun.

Detailed explanation-3: -The jovian planets, however, formed farther from the Sun where ices and rocks were plentiful. The cores accreted rapidly into large clumps of ice and rock. Eventually, they got so large, they captured a large amount of hydrogen and other gasses from the surrounding nebula with their enormous gravity.