Question

When you hear an echo you are hearing a ________of the original sound wave

Answer 1

Answer:

reflection

Choice D is correct

Explanation:

An echo is simply a reflection of the original sound wave which arrives at the listener with a delay after the original sound.  Sound waves can be reflected, that is bouncing off objects in the same manner a solid object can bounce off the ground. The echo sounds entirely the same as the original sound but the direction of the sound is altered.