Noise level during normal conversation among men is about ______________ decibels?
Correct answer: B. 45
- A. 10
- B. 45
- C. 90
- D. 115
Explanation
Normal conversation is commonly listed in the approximate range of 45 to 60 dB, so 45 dB is the only suitable option given. Values near 90 dB represent loud machinery or shouting rather than ordinary speech.
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