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

  1. 80 Decibal
  2. 100 Decibal
  3. 120 Decibal
  4. 140 Decibal
Monis Rasool Professor Asked on 21st November 2015 in General Knowledge.
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1 Answer(s)

Answer: (4) 140 Decibal

Anurag Mishra Professor Answered on 21st November 2015.
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