Explain why the following is an incorrect definition of a paragraph.

A paragraph is a group of sentences.

(Write 1 paragraph explaining why)

The true definition of a paragraph is a distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering. Therefore the statement explaining "A paragraph is a group of sentences" is incorrect because there is more to it. The group of sentences must have a common theme or main idea incorporating a group of thoughts.