question: acid-base indicators can go from what?
choices.text: orange to black Ionization VOCs and NOx lung irritants green to gold blue to red one to two Stomata closing
choices.label: A B C D E F G H
formatted_question: acid-base indicators can go from what? (A) orange to black (B) Ionization (C) VOCs and NOx (D) lung irritants (E) green to gold (F) blue to red (G) one to two (H) Stomata closing