Gas planets are huge planets made up of large volumes of gaseous materials, with this characteristic we have in the solar system: Jupiter, Saturn, Uranus and Neptune.
Jupiter is the largest planet in the solar system, has several colors formed from gases, 85% of which is hydrogen. In the universe there is an abundance of this element, mainly responsible for the formation of stars. The planet's layers are composed of liquid helium and molecular hydrogen, its atmosphere formed with gaseous hydrogen and helium.
Saturn is one of the largest planets in the solar system, surpassed only by Jupiter, its main feature is the presence of sparkling rings that are visible from Earth. The planet in question has a significant percentage of hydrogen in its composition, in addition to helium in a smaller amount. The interior has a core full of ice and rocks, around it is possible to identify an extensive portion of metallic hydrogen and another layer with varied gases.
Uranus is a gaseous planet, although its core is made up of ice and rocks. Its atmosphere consists of the junction of hydrogen and helium, this layer accounts for approximately 15% of the mass that makes up the planet.
Neptune has its formation based on the composition of elements such as molten rock, water, liquid ammonia and methane, in addition to junction of hot gases consisting of hydrogen, helium, water and methane, the latter is decisive in the bluish color of the planet.
By Eduardo de Freitas
Graduated in Geography
Source: Brazil School - https://brasilescola.uol.com.br/geografia/planetas-gasosos.htm