सामान्य संभाषणाच्या आवाजाची पातळी किती असतो? A. सुमारे 60 dB B. सुमारे 70 dB C. सुमारे 80 dB D. सुमारे 90 dB

Normal conversation between two people is about 60 decibels (dB). For comparison, a whisper is about 30 dB, heavy traffic about 85 dB, and sounds above 85 dB can damage hearing with long exposure.