Question

what is an echo??? describe in simple words....

Answer 1

Echo means:- a sound or sounds caused by the reflection of sound waves from a surface back to the listener.

Answer 2

Answer:

As we know that sound can reflect suppose we cry with a loud sound and this sound wave go forward and collides with other obstacles and some amount of sound come back and create a sound or it produced in low loudness. This phenomenon goes continue and repetition of sound is called echo.