Ethos: appeal to credibility
For example someone including a specialist or professional's opinion on a product.
Ex: #1 Doctor Recommended
Ex: Selena Gomez's Favorite Shampoo
Answer:
A paragraph is a group of sentences that fleshes out a single idea. In order for a paragraph to be effective, it must begin with a topic sentence, have sentences that support the main idea of that paragraph, and maintain a consistent flow, presents a single idea.