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Question

Sounds above what level are considered hazardous noise pollution?

A
Above 80 dB
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B
Above 30 dB
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C
Above 150 dB
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D
Above 120 dB
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Solution

The correct option is A Above 80 dB
Noise pollution is a physical form of pollution which affects the receiver directly. It is caused when loud disturbing sounds are produced from a source and spread into ambient atmosphere. Noise pollution occurs when the sound has a value of 80 dB (decibel). Hence, hazardous noise pollution occurs above 80 dB.
So, the correct answer is 'Above 80 dB'.

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