"What is the difference between snow and ice?"

Translation: 눈과 얼음은 무엇이 다릅니까?

[Saenduwichi]

Why not 어떻게 다릅니까?

[LesChristiansen]

Doesn't translate into "Are snow and ice different?"

[wintertriangles]

No, it literally says "As for snow and ice, what is different?"

Your sentence would read 눈과 얼음은 다릅니까?