How do the headings in the body of this article help to
organize the information?

The headings show that each section is about one of Sylvia Earle’s important roles :)

I hope that helps.

Adjective clauses  begin with words such as that, when, where, who, whom, whose, which, and why. an essential (or restrictive)  adjective clauseprovides information that is necessary for identifying the word it modifies. so for example*** wrong= i the man gave me direction. example right ( i the man who gave me the  direction.