What are the main sources of noise in the city? Indicate ways to reduce the noise level.

The main source of noise pollution in the city is transport – airplanes, trains, cars.

Other sources of noise are industrial plants, factories and plants, construction sites, ventilation systems, etc.

In addition, office and household appliances are sources of noise.

Many techniques are currently being developed to reduce noise pollution. Soundproofing is installed in some rooms. When developing electrical devices, technologies are used to reduce the level of noise produced.



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