<em>Conclusion is the last part of an speech, essay or anything. It finishes the thing which we are doing and concludes it. Like if your telling a speech, you finish it by summarizing or telling a message. Like that you end it. Your conclusion of an argumentative essay should end summarizing or covering all the main points about the problem. You should not rise up new problems in your conclusion because your conclusion concludes or solves or closes the problem. </em>
A call to action is a action you tell your readers to do to make your claima reality for example: On a essay about teen curfew laws in this case for "Call your local representatives and demand that these laws are made"