Mention the role of school to reduced noise pollution
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Noise Cancelling Headphones and Earplugs. Turn Off Electrical Appliances.
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The World Health Organization (WHO) recommends 35 decibels as the limit for background noise in school classes. The noise which exceeds the limit makes it more difficult to communicate and to distinguish speech. A computer’s noise level is 30-50 decibels, conversation makes 50-70 decibels and traffic will cause a sound of 70 to 85 decibels. The ear’s pain threshold is 125 decibels. There is a risk of hearing loss when the noise level rises to 85 decibels for eight hours repeatedly.
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