Sound becomes hazardous noise pollution at decibels?
A. Above 120 db
B. Above 80 db
C. Above 50 db
D. Above 30 db
Answer: Option B
Sound becomes hazardous noise pollution at decibels?
A. Above 120 db
B. Above 80 db
C. Above 50 db
D. Above 30 db
Answer: Option B
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