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2.2 FACTORS AFFECTING PROPAGATION OF SOUND There are several important factors, which affect the propagation of sound: geometric spreading, atmospheric effects, and surface effects. These are discussed separately below. 2.2.1 Geometric Spreading This refers to the spreading of sound energy as a result of the expansion of the wave fronts.
Ill-effects of Noise Pollution. The main problem that noise pollution, (also known as sound pollution), causes is that it affects the physiological and psychological health of an individual who is exposed to the excessive sound. Sometimes, it can even cause deafness and impaired hearing.