Jupiter’s atmosphere, gradually thickening, turns into a liquid state. Then the pressure becomes so great that the hydrogen acquires the properties of a metal, and a layer of metallic hydrogen is located here. In the center there is a core consisting of oxides of silicon, magnesium, iron with impurities. Neptune and Uranus have a slightly different structure. The atmosphere is composed of hydrogen, helium, methane, ammonia. Then a mantle, consisting of a mixture of frozen water, methane, ammonia. In the center is a stone core.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.