Sound waves move more slowly in the air than in water, while light waves move more quickly in the air than in water due to the differences in density and medium properties.
In general, sound travels faster in denser media, like water, compared to less dense media, like air. On the other hand, light travels slower in denser mediums than in less dense ones due to its interaction with the medium's particles. Thus, the fundamental properties of the mediums affect the speed of sound and light differently.