A) It is an undesired high level of sound.
B) It is measured in dB.
C) It can cause damage to heart, increase blood cholesterol and even raise blood pressure etc.
D) All of the above
Correct Answer: D
Solution :
[d] All the statements regarding noise pollution are correct. Noise pollution is the unwanted sound which is released into the environment. It disturbs the human being and cause an adverse effect on the mental and psychological well - being. It is measured in the units of decibels and is denoted by dB. The noise which is more than 115 dB is tolerant. It affects the general health and hearing power of the human beings.
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