Answer:
San po yung choices Jan?
btw ito po yung explanation kung baket mag e-echo ung boses natin pag magsalita or mag pa sound sa empty gym or room. Sana makatulong
Explanation:
Sound will echo in an empty room because if there is nothing to stop the sound reflecting between hard surfaces, such as the walls, windows, ceiling, and floor . Since each surface is not a perfect reflector, some of the sound energy will be absorbed by the surface.
