Question

What is defined as writing that uses facts to explain?

Answer 1

That would be expository writing. Think about expository and explain. They both start with exp.
Hope I helped!

Answer 2

The answer is EXPOSITORY WRITING.

Step-by-step explanation:

EXPOSITORY WRITING (essays, articles, etc) are the ones to "expose" the topics with the purpose of informing the reader. Among its features, we could remark that expository essays describe something. In order to back up his position, the writer resorts to graphics, statistics, examples, and FACTS.