question: A vehicle causes
choices.text: negative feedback Major effects dehydration Communication feedback damaging heating air pollution
choices.label: A B C D E F G H
fact2: Transportation causes most of the air pollution in and around Vancouver.
combinedfact: a vehicle causes  air pollution
formatted_question: A vehicle causes (A) negative feedback (B) Major effects (C) dehydration (D) Communication (E) feedback (F) damaging (G) heating (H) air pollution