Be sure everything you have included is necessary. The entire essay should follow a logical pattern of organization. The mark text , cut and paste functions on computers simplify this task. The tone of a piece of writing conveys the author's attitude. Diction, the writer's choice of words, determines tone.
Appropriate diction is crucial to accurate and effective writing on the college level.
Slang words, street talk, and other terms or expressions that are suitable for casual conversation are out of place in formal writing. Formal college-level writing requires standard written English. Consult with your instructor for specific guidelines.