### Theory:

A group of sentences formed together related to one particular topic, or develops to a single point, is called a paragraph.
A paragraph, in simple words, is a group of sentences. Take any book for example, the text is divided into units called paragraphs to make the reading easier and interesting. Also, each paragraph starts with an indent to the right. It is done to show that a new idea or concept is being introduced in the next paragraph.
Why is a paragraph needed?