question: What does smog contain?
choices.text: carbon polymorphs Decaying vegetation sunlight microorganisms scales or plates physical properties fish lung irritants
choices.label: A B C D E F G H
formatted_question: What does smog contain? (A) carbon polymorphs (B) Decaying vegetation (C) sunlight (D) microorganisms (E) scales or plates (F) physical properties (G) fish (H) lung irritants