Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.
Neptune's atmosphere, like Jupiter's and Saturn's, is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen; it contains a higher proportion of ices such as water, ammonia, and methane.
Because, like the other gas planets, or gas âgiantsâ in our solar system - Jupiter, Saturn and Uranus, Neptune does not have a discernible or solid surface, and is largely composed of elements we would usually gases here on Earth.