Question
What is an echo? Mention one of its uses.
Answer
An echo is the reflection of sound waves off a surface back to the listener. One of its uses is determining the distance or location of objects using echolocation.
Question
What is an echo? Mention one of its uses.
Answer
An echo is the reflection of sound waves off a surface back to the listener. One of its uses is determining the distance or location of objects using echolocation.
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