A sound level of ________ is considered the threshold for 'noise' that can cause pain or discomfort.
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Correct answer: 120–130 dB, at which physical pain occurs
While constant exposure to 80 dB can cause hearing damage over time, sounds reaching 120–130 dB (like a loud siren or rock concert) reach the threshold of pain for the human ear. Immediate physical discomfort occurs at these levels.
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