explain+why+sound+is+a+useful+and+versatile+form+of+communication

Sound is a useful and versatile from of communication as it is used in everyday human life. . Animals can transmit specific sounds at a specific pitch, frequency and tone where the receiver can pick up the sound and understand it. Sound is so versatile that it can be used both in day and in night; it can go around objects and bend around walls. Sound can travel that far that the receiver does not have to be directly visible; e.g. If a person stands behind a wall and another person makes a sound from the other side the receiver will still be able to pick up the sound. Sound can bring emotions to ones feelings e.g. by whispering or screeming as they have two different pitches.

As shown if the YouTube video below the humpback whale is using sound as a form of communication. There type of communication is specific which only other whales can understand. The type of sound that the humpback whales make can be heard of 140 miles away.

http://www.youtube.com/watch?v=xo2bVbDtiX8 ^^this youtube link is usefull as it show how whales communicate.