Answer:
The graphs and charts contain a large amount of data that is represented in simple words or in terms of numbers. These pieces of information are displayed in a proper and well-oriented way that helps in the interpretation of any topic. These graphs and charts comprised of data are obtained after performing an experiment and they are very widely used. These can be made by hand or can be generated by using computers.
Thus, they are very efficient and easily highlight the important points and very appropriate to understand regarding any particular topic.