question: A compass is used to travel on the surface of what?
choices.text: planes water stars boats marine clouds poles sun
choices.label: A B C D E F G H
fact2: Ocean waves travel on the surface of the water.
combinedfact: A compass is used to travel on the surface of the water.
formatted_question: A compass is used to travel on the surface of what? (A) planes (B) water (C) stars (D) boats (E) marine (F) clouds (G) poles (H) sun