Final answer:
If a writer doesn't include necessary information in the expedition, the expedition will lack credibility and thoroughness.
Step-by-step explanation:
If a writer doesn't include necessary information in the expedition, the expedition will lack credibility and thoroughness. By omitting important details, the writer fails to draw the readers into the essay, keep them interested, or make them think about the topic. It also undermines the writer's ability to engage the audience and may lead to a lack of understanding and disinterest in the development of the individual.