Answers

  • Brainly User
2014-06-11T11:52:43+05:30
Object producing sound - Sound level in decibel(dB)
Jet take off-140
Pop concert-130
Police car siren-120
Heavy hammering machine-110
Diesel lorry-90
Motorcycle or r-80
Vacuum cleaner-60
Normal conversation-50
Soft whisper-30
Recording studio-20
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