A. 20 dB B. 60 dB C. 100 dB D. 160 dB Right Answer: 100 dB Share : February 19, 2018 Asghar Khan Everyday Science Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -During winter in cold countries, the __________ is mixed to melt the ice on the icy roads?Deficiency of __________ causes loss of appetite and poor growth?Deuterium differs from Hydrogen in having?