Question

What do Uranus’s and Neptune’s atmospheres both contain?

Answer 1

Answer:Uranus and Neptune have similar masses and internal compositions. Their outer atmospheres are composed of hydrogen, helium and methane, while their mantles are a combination of water, ammonia and methane ices, and their cores are a mix of rock and ice.

Structure. Uranus is one of two ice giants in the outer solar system (the other is Neptune). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small rocky core.

Step-by-step explanation:

Answer 2

Methane

Their atmospheres both contain Methane, which makes them appear blue in color. Neptune is believed to have an active and changing atmosphere. Uranus and Neptune have rings and many moons and are part of a group called the Outer planets.

Step-by-step explanation: