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Aprašymas

A low sound is pleasant, whereas, loud sound is unpleasant and is commonly referred to as "Noise". Noise can be defined as an unpleasant and unwanted sound. Sound pollution causes due to industrialized urban life and congestion and over population. Noise pollution is not fatal to human life, yet its importance cannot be overlooked, because repeated exposure to sound reduces the sleeping hours and productivity or efficiency of a human being.