Here's why:
* Exposition is the process of explaining, informing, and clarifying. Nonfiction aims to be factual, accurate, and enlightening, so it needs to clearly present information to its readers.
* Exposition provides context and understanding. It helps readers grasp the subject matter, understand its significance, and form their own informed opinions.
* Exposition builds arguments and supports claims. Nonfiction often presents a thesis or argument, and exposition is crucial for building a logical case and providing evidence.
Examples of exposition in nonfiction:
* History: Explaining the causes and consequences of historical events.
* Science: Explaining scientific theories and processes.
* Biography: Providing factual details about a person's life and achievements.
* Journalism: Presenting news and reporting on events in a neutral and informative way.
While fiction relies on other literary devices like character development, plot, and figurative language, nonfiction's primary focus is on conveying information effectively through exposition.