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What is the unti of noise pollution ? St...

What is the unti of noise pollution ? State two ill effects of it .

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unit of noise ollution are decibels. Noise pollutin is known to cause
i. partial or complete deafening of ear.
ii. Adrenaline secretion is stimulated which increases the irritabilityu, nervousness, neuro muscular tension, increased blood pressure etc.
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