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.
Neptune is one of the two planets classified as an ice giant.. Like Uranus, its composition is made up more heavily of ices than the gas giants of Jupiter and Saturn. Neptune's atmosphere is composed predominantly of hydrogen and helium, with traces of methane to create the bluish color.Unlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights.The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius).nlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights. The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius).