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Question

Air pollution and noise pollution.

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Air pollution : 
1. Contamination of air due to discharge of harmful substances. 
2. Air pollution may be natural or map made. 
3. Air population  causes diseases such as asthma, bronchitis, lung and heart diseases.
Noise pollution : 
1. Disruption of the activities or balance of life is formed due to harmful sound 
2. Noise pollution is always man-made (machine made) 
3. Noise pollution causes hypertension, hearing loss and sleep disturbance.

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