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Question
Write any three ways by which noise pollution affects the human body adversely. List any three steps that should be followed in order to reduce noise pollution.
Solution
Three ways by which noise pollution affects the human body adversely:
1. Loud sounds with pleasure and entertainment.
2. The bigger the city, the bigger the function, the greater the noise.
3. A brief exposure to extremely high sound level, 150 dB or more generated by takeoff of a jet plane or rocket.
Step which are followed to reduce noise pollution:
• Reduction of noise in our industries can be affected by use of sound absorbent materials or by muffling noise.
• Stringent following of laws laid down in relation to noise like delimitation of horn-free zones around
hospitals and schools, permissible sound-levels of crackers and of loud-speakers, timings after which loudspeakers cannot be played, etc., need to be enforced to protect ourselves from noise pollution.
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