Answer-
CHANNELS are the means by which mesaages are communicated.
Channels may be described and analyzed by 2 ways .
First one involves the form in which messages are to be sent to receivers.
Forms include verbal as well as non verbal communication .
We use our five senses to receive mesaages from others.
Channels may also be described according to the manner of presentation employed in communication.
Depending on the situation,the source would concentrate on verbal /non verbal channels of communication.
If the speaker is not infornt of the audience his /her physical appearence wouldnt matter ,but if in a live audience it would .
Whatever channels of communication are used ,the source must learn to adapt the message to make use of the most appropriate channels available for the situation.