5. Which of the following level of sound is noise
(a) 20 dB
(b) 40 dB
(d) 100 dB
(C) 80 dB
Answers
Answered by
2
Answer:
80
Explanation:
I can't say it is but... 80 is
Answered by
0
Answer:
100dB
it is up to 120 dB.....
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