question: What can cause metal to become orange on the surface?
choices.text: vibration friction Moisture cars Chrome magnesium Dry conditions Mineral oil
choices.label: A B C D E F G H
fact2: Moisture can damage metal causing rusting and corrosion.
combinedfact: Moisture can cause metal to become orange on the surface.
formatted_question: What can cause metal to become orange on the surface? (A) vibration (B) friction (C) Moisture (D) cars (E) Chrome (F) magnesium (G) Dry conditions (H) Mineral oil