Answer:
The headings show that each section is about one of Sylvia Earle’s important roles
Explanation:
Headings allow the reader to navigate easily through the text,which helps the readers to both determine the overall outline of the document, and navigate to specific information on the page.Thus,the headings in the body of this article make sure that each section is about one of Sylvia Earls important roles.The roles, achivement,
