Sounds that are loud and unnecessary are called noise.
The presence of loud, unwanted and disturbing sound in our environment is called noise pollution.
Major sources of noise pollution
1)The motor vehicles running on the road produce noise pollution by blowing horn and sound of their engines.
2)The bursting of crackers on various social and religious occasions produce noise pollution.
3)The various machine in factories make loud sounds and cause noise pollution.
4)The take off ,landing and flying of aeroplane produce noise pollution.
5)The playing of loudspeakers and bands at marriages and other social functions.
Harms of noise pollution
1) loud noise can cause great harm to our ears. Constant loud noise reduces the hearing power of our ears. loud noise can even damaged ears permanently and cause defness.
2)Loud noise can cause a person to lose concentration in his work or studies.
3) loud noise can cause an ailment called Hypertension.
4) loud noise can cause irritation and headache.
5) loud noise during night time disturbs our sleep. Continued lack of sleep is bad for health