The four major types of arguments are arguments of fact, definition, evaluation, and proposal. Every argument has certain characteristics that put it in one of these four categories. An argument of fact is a basic argument that determines whether or not something is occurring with facts. The argument that carbon dioxide is destroying the ozone layer must be proved by using scientific facts. Arguments of definition describe what something is apart of or what category belongs to in the world. Definition arguments usually are trying to tell what something is or is not. Evaluation arguments are usually opinion arguments where someone is trying to convince an audience that one thing is better than the other. An example of an evaluation argument would be trying to explain why apples are better oranges since that distinction is only a person's opinion. A proposal argument tries to persuade listeners or readers to act on something. The writer tries to convince the public to take their plan of action to solve a problem. All arguments will fit into at least one of these categories and some might belong to two or three categories.