Why sound can be hear more distinctly at a greater distance over water surface ?

A short sighted person can see objects most distinctly at a distance of 16 cm. If he wears spectacles at a distance of 1 cm from the eye, then their focal length to see distinctly at a distance of 26 cm

Sound can be heard over a long distance on a rainy day. Why?

"Sound can be heard over longer distance on rainy days"-Justify.

Why does oil spread over the surface of water?

Why can sound waves be diffracted more easily than light waves?

It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums. Name the characteristics of sound associated with the above observation.