Question

What is similar about Uranus's and Neptune's atmospheres?

Answer 1

Uranus and Neptune are both ice giants.

Explanation:

All of the outer planets, Jupiter, Saturn, Uranus and Neptune have atmospheres containing mainly Hydrogen and Helium.

Jupiter and Saturn have atmospheres which are almost all Hydrogen and Helium. They are referred to as gas giants.

Uranus and Neptune have "ices" in their atmospheres. Ices are volatile substances such as water, methane and ammonia. These planets are referred to as ice giants. Both planets have measurable quantities of methane in their atmospheres.