How does the quote by walter cronkite in paragraph 10 contribute to the central ideas of the text

Iam awful at english and am so confused sos ignore the completely wrong diagram above

Where is the main header supposed to be placed, when formatting a transcript ? how many spaces before the body of the dialogue ? two three or four ?

Respect for the environment means a: loving trees and animals b: not drinking out of streams c: making as little impact as possible on wilderness areas d: only using resources that are high in supply