A)they trap more heat in earth's atmosphere.
I believe it would be to inform, the particular excerpt isn't really informing about anything, and its not persuading the reader to do anything, simply attempting to entertain the reader with a story.
Answer:
I'd definitely say I'd prefer to be a mayor, since the President goes through a lot of stressful situations and tasks; granted so does a mayor, but its significantly less.
Explanation:
Giving the smallest amount of detail
