Most speech sounds vary from 30 to 70 decibels, the right human hearing frequency vary that describes mild-to-moderate hearing disorder.
Question : The ordinary and maximum tolerance limit of sound by human being is:
Option 1: 50 dB to 70 dB (decibel)
Option 2: 60 dB to 80 dB (decibel)
Option 3: 65 dB to 75 dB (decibel)
Option 4: 70 dB to 85 dB (decibel)
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