Answers

2014-06-21T12:56:46+05:30
Jet take off-140 dB
Pop Concert-130 dB
Police car siren-120dB
Heavy hammering machine-110dB
Diesel lorry-90dB
Car-80dB
vacuum cleaner-60dB
normal conversation-50dB
soft whisper-30dB
recording studio-20dB
hope i helped u:) 
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