Answers

2014-06-11T21:29:40+05:30
Jet take off-140dB
pop concert-130dB
leaves rusting-10dB
dropping pin-0dB
recording studio-20dB
soft whisper-30dB
normal conversation-50dB
vacuum cleaner-60dB
car-80dB
diesel lorry-90dB
27 4 27
pls mark as best......plzzzzzzz...need it urgently