What Level of Noise, is Called “Noise Pollution”?

  1. 80 Decibal
  2. 100 Decibal
  3. 120 Decibal
  4. 140 Decibal
Anurag Mishra Professor Asked on 31st October 2015 in Environment Science.
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1 Answer(s)

Answer: (4) 140

Anurag Mishra Professor Answered on 31st October 2015.
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