A) Above 150 dB
B) above 120 dB
C) Above 80 dB
D) below 30 dB
Correct Answer: C
Solution :
[c] Prolonged exposure to noise level above 80 dB (decibel) gradually leads to permanent loss of hearing ability. Therefore sound above 80 dB level is considered to be a hazardous noise pollution.You need to login to perform this action.
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