Question

Why do Uranus and Neptune appear to be blue?

Answer 1

they appears blue due to presence of ice in them as they are far from sun

Answer 2

Uranus and the blue, indigo color of Neptune come from methane in their clouds. Uranus and Neptune have a similar size, mass, and bulk composition and they are both much smaller, less massive, and denser than the other two giant planets, Jupiter and Saturn.

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