Question

define echo please fast​

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.

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Answer 2

Answer:

Echo - A repetition of sound produced by the reflection of sound waves by a reflecting surface is called an echo.

Explanation:

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