What HTML tag is used to create a paragraph break?

Use

tags. Here are some examples of how to use them:

This is my first paragraph. I would like for there to be a break between my paragraphs so I am splitting them up with p tags.

This is my second paragraph, there will be a line break between this paragraph and the one above it. This is the default practice of most browsers.

Alternatively you can write your text as a block with
tags as line breaks. ie:

This is my first paragraph. I would like for there to be a break between my paragraphs so I am inserting br tags between them.

This is my second paragraph, there will be a line break between this paragraph and the one above it due to my
tag.