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Question 21 of 36

Q.What is Noise?

Yanam BieapBIEAP AP Intermediate (2nd Year) Commerce Board 2020Subjective· 2mImportance★★★★★est
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Noise is unwanted or disturbing sound, measured in decibels, and when it becomes excessive it is called noise pollution. Its main sources are vehicles, industries, loudspeakers, construction and machinery, and it damages hearing, raises stress and disturbs health and sleep. This is an AP Intermediate 2nd-year Economics topic on environmental pollution.

Meaning: Noise is any sound that is unwanted, unpleasant, irritating or disturbing to human beings and other living creatures. While sound in itself is natural, it becomes 'noise' when it is loud, harsh or occurs at the wrong time and place. The intensity of sound is measured in units called decibels.

Noise pollution: When the level of noise rises beyond tolerable limits, it is termed noise pollution. Its chief sources are:

  1. Road, rail and air traffic.
  2. Industries, factories and machinery.
  3. Loudspeakers at functions, festivals and public events.
  4. Construction activity and household appliances. …

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