What are the types and characteristics of expository writing?

The characteristics of expository writing:

Explanatory writing is a kind of style that focuses on explanation, and introduces and explains things with narrative, descriptive and argumentative writing. This paper mainly introduces the shape, structure, nature, characteristics, causes, relations and functions of objective things, and explains the meaning, characteristics and evolution of things. Because the purpose of expository writing is to give people scientific knowledge, mainly objective introduction, and generally does not express the author's views and thoughts and feelings. At the same time, the language of the explanatory text must be concise, accurate, clear and easy to understand.