1.

Consider the following statements regarding noise pollution:A) Noise levels decrease as we move away from the source of noiseB) Materials with high surface/mass density act as good noise barriersC) Sound pressure of 2 Pa corresponds to a noise of zero decibelChoose the correct option from those given below:

A. and B) only
B. and C) only
C. and C) only
D. A), B) and C)
Answer» B. and C) only


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