Precise language is the use of exact words and languages to convey one's meanings. This means that a person uses the very exact words that most clearly explain or denote the intended word.
Precise language uses specific words that can most clearly capture or present the intended image. It projects a strong mental image on the listener's mind and makes it easy to understand and comprehend.
I can't write your essay for you but I use prepostseo.com which is an article rewriter that makes sure it doesn't plagiarize. You basically copy an article and paste it in.