Question

Which surfaces reflect sound better-hard or soft?

Answer 1

Hard surface reflects the soundwaves back to where the sound waves originated, because they can not penetrate the solid very easily so the sound waves bounce off the hard material.

Answer 2

Hard surface  reflect the sound waves more than any soft surface because  soft surface observe or let pass the waves . that's why we hear that house with metal & bricks give more echos than fiber & wooden houses .