Pollution occurs in different forms; air, water, soil, radioactive, noise, heat/ thermal and light. Every form of pollution has two sources of occurrence; the point and the non-point sources. The point sources are easy to identify, monitor and control, whereas the non-point sources are hard to control.
Communication is a means of passing an information signal from source (sender) to a recipient (receiver) in such a way that the message is understood. communication is the act of interaction,sharing ideas and information between two peoples.
Definition of communication for Students. 1  1 : the exchange (as by speech or letter) of information between persons. 2  2 : information exchanged. 3  3 communications plural : a system of sending information. 4  4 communications plural : a system of routes for transportation.