question: What in the atmosphere increases clouds which block the sun?
choices.text: negative feedback winds litter volcanic ash melanin content melanin amount oxidizers trees and flowers
choices.label: A B C D E F G H
fact2: With increasing cloud blocking the sun, temperatures drop considerably.
combinedfact: Volcanic ash in the atmosphere increases clouds which block the sun.
formatted_question: What in the atmosphere increases clouds which block the sun? (A) negative feedback (B) winds (C) litter (D) volcanic ash (E) melanin content (F) melanin amount (G) oxidizers (H) trees and flowers