NCERT Solutions for Class 8 Science Chapter 13
Important NCERT Questions
8th Chapter 13 Sound
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 9
List sources of noise pollution in your surroundings.
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Major causes of noise pollution are sounds of vehicles, explosions including bursting of crackers, machines, loudspeakers etc. Sources in the home may lead to noise pollution. Television and transistor radio at high volumes, some kitchen appliances, desert coolers, air conditioners, all contribute to noise pollution.
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Sources of noise pollution in various surroundings encompass:
1. Traffic Noise: Generated by vehicles—cars, buses, trucks—through engines, horns, and exhausts, particularly prevalent in urban areas and near highways.
2. Construction Clamor: Noise emanating from construction sites due to heavy machinery, drilling, and building activities, affecting nearby residents.
3. Industrial Racket: Factories, manufacturing units, and machinery in industrial zones producing continuous and high-level noise.
4. Aircraft Roar: Noise from aircraft engines and sonic booms, especially around airports or flight corridors.
5. Residential Turmoil: Loud music, barking dogs, lawnmowers, or household chores creating disturbances in residential neighborhoods.
6. Commercial Hubbub: Amplified music, social gatherings, bars, and restaurants contributing to urban noise pollution.
7. Public Events: Noise generated from concerts, festivals, sports events, and parades impacting surrounding areas.
8. Public Address Systems: Loudspeakers in public spaces, transportation hubs, or religious institutions broadcasting at high volumes.
9. Railway Racket: Noise produced by trains—engines, horns, and movement—along railway tracks affecting nearby communities.
10. Recreational Noise: Loud engines of motorcycles, off-road vehicles, and recreational boats disturbing tranquility in recreational areas.
Noise pollution from these diverse sources can lead to detrimental health effects, including stress, hearing impairments, sleep disturbances, and overall decreased quality of life for affected individuals.