Final answer:
An expository essay is a type of essay that explains or clarifies a topic to the reader. It should have an introduction, body paragraphs with supporting evidence, and a conclusion. Transitions should be used to create a logical flow.
Step-by-step explanation:
An expository essay is a type of essay that explains or clarifies a topic to the reader. It breaks the topic down into parts and provides an explanation for each component. The essay should have an introductory paragraph that introduces the issue, body paragraphs that present the main arguments with supporting evidence, and a concluding paragraph that restates the thesis and summarizes the main points. Transitions should be used to connect paragraphs and sections and create a logical flow throughout the essay.