Question

why is the intensity of an echo less than that of the original sound
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Answer 1

Answer:

An echo is weaker than the original sound because it's produced by a sound wave which travels through the air and then hits another surface, after...

Explanation:

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Answer 2

Answer:

An echo is weaker than the original sound because it's produced by a sound wave which travels through the air and then hits another surface, after...

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