Writing a research proposal is rightfully considered as one of the most complex tasks and requires mastery of multiple skills. It is a paper, which aims to deliver a brief information on the research you want to conduct, explaining the main reasons why it will be useful for the reader and for the society. A correct research proposal should contain.
An essay is, generally, a piece of writing that gives the author's own argument — but the definition is vague, overlapping with those of a paper, an article, a pamphlet, and a short story. Essays have traditionally been sub-classified as formal and informal.