Question

What are echoes and how are they formed?​

Answer 1

Answer:

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.

Explanation:

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Answer 2

Answer:

revibration of sound or the sound is reflected by 2 or many times are called echo