Question

what are Echoes??? why do we not hear them all the time ​

Answer 1

Explanation:

A SOUND OR SOUNDS CAUSED BY THE REFLECTION IF SOUND WAVES FROM A SERFACE BACK TO THE LISTENER

So, the reason that echoes aren't heard in rooms is that the reflected sounds are received in less than 0.1 seconds, or the reflecting surfaces are at distances of less than 17 meters. Reverberations can also be heard in an empty apartment.

Answer 2

Answer:

, the reason that echoes aren't heard in rooms is that the reflected sounds are received in less than 0.1 seconds, or the reflecting surfaces are at distances of less than 17 meters. Reverberations can also be heard in an empty apartment