Air Pollution and its Control
Question
Which of the following level of sound may damage ear drum and can impair the hearing ability permanently?
Easy
Solution
Noise is undesirable sound of high level that causes psychological and physiological disorders in human. A brief exposure to extremely high level of sound ( ≥ 150 dB) generated by taking off of a jet plane or rocket, may damage ear drums and hence can impair hearing ability permanently.
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