Question

define noise pollution
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Answer 1

Answer:

Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems.

Explanation:

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Answer 2

annoying level of sound. which we don't want to listen that is called noise pollution.

ex- machines, vehicles and etc

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