2.What is an essay? An essay: 1)is a short collection of paragraphs 2)presents facts,opinions,and ideas on a topic. Features of an essay 1)length:usually three to ten paragraphs. 2)unity:each paragraph discusses one idea, often stated in the topic sentence of the paragraph. This idea is related to the topic of the whole essay2. What is an essay? An essay: 1) is a short collection of paragraphs 2) presents facts, opinions, and ideas on a topic. Features of an essay 1) length: usually three to ten paragraphs. 2) unity: each paragraph discusses one idea, often stated in the topic sentence of the paragraph. This idea is related to the topic of the whole essay