Answer:
The writing techniques that are used in expository writing are:
analyzing, defining, illustrating, classifying, and comparing.
Step-by-step explanation:
Expository writing is the type of writing that has the purpose of showing something to the reader by representing it with language so the reader can understand the writer's idea completely. It requires analyzing, knowing what to say and organize the topic, defining, explaining the concepts, illustrating, to describe processes and examples, classifying to establish relationships with similar objects and comparing to analyze their characteristics.