What is an exposition

Instead of merely adapting a definition of exposition, I will instead answer the question by stating what is an exposition to me.

Essentially writing expositions is a strict discipline which requires one to couple objectivity in content with creative expression.

That being said an exposition is made up of following parts.

1) Content with opinion
2) Objectivity

that

3) Appeals to logic (i.e clear argument)
4) Appeals to emotion (i.e Creative language)
5) Appeals to credibility (i.e based on Research)

This are the composites in making a good exposition and if one would like a sentenced version it will be as follow.

An exposition is a piece of work showing one's objective opinion towards a particular matter, it is writen as a argument that is clear and credible and can be expressed creatively