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if a kid is practicing for a play and there is an auditorium of loud people that are shouting, and he screams, he hears and echo, when he screams in a quiet auditorium, he doesn't hear an echo, why is
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if a kid is practicing for a play and there is an auditorium of loud people that are shouting, and he screams, he hears and echo, when he screams in a quiet auditorium, he doesn't hear an echo, why is that

User Shawn K
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Because the sound waves are being observed by the people that are there and it is not empty as in an empty place the sound waves will come back to you.
User Mattanja
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