ANSWER:

1.A paragraph is a self-contained unit of discourse in writing dealing with a particular point or idea. A paragraph consists of one or more sentences. Though not required by the syntax of any language, paragraphs are usually an expected part of formal writing, used to organize longer prose.

2.In expository writing, a topic sentence is a sentence that summarizes the main idea of a paragraph. It is usually the first sentence in a paragraph. Also known as a focus sentence, it encapsulates or organizes an entire paragrap      3.The supporting sentences, also called the body of the paragraph, are used to support, explain, illustrate, or provide evidence for the idea expressed in the topic sentence4.What is a Concluding Sentence? The conclusion is the last sentence in your paragraph. ... - Restate the topic sentence using a different kind of sentence. - Wrap up your paragraph.