Question

what is an echo???????​

Answer 1

Answer:

Echoes are basically reflections of sound waves

Explanation:

An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Although the direction of the sound changes, the echo sounds the same as the original sound.When a wave hits a surface part of the sound is absorbed and the rest bounces back. If you are standing far enough from the surface (about 17 metres away), then you might be able to hear the echo.

Answer 2

Answer:

1 a sound that is reapeated as it sent back of a surface such as wall of a tunnel.