6. What do you mean by noise pollution? What are the main causes of noise pollution
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noise pollution is defined as any unwanted sound that causes annoyance , disturbance and prohibits concentration.
Explanation:
The noise produced in factories also contributes to outdoor noise pollution
noise pollution produced by air craft and turbines may cause biochemical changes in human beings.
industrial workers exposed to high noise levels are subjected to hypertension
exposure to continuous high level sound can have serious physiological and emotional impacts.
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