Final answer:
Descriptive descriptions serve to inform readers accurately and without personal bias. Objective stance in writing is crucial, as writers should present reliable information backed by facts.
Step-by-step explanation:
The purpose of descriptive descriptions is to inform readers by accurately reporting factual details without personal opinionated statements. This is known as an objective stance in writing. It is important to distinguish facts from opinions and to provide reliable information with specific facts, statistics, and examples.