question: What can be used to smooth tables?
choices.text: backbones keratin sandpaper sand dollar lamphreys wax paper sponges aluminum foil
choices.label: A B C D E F G H
fact2: For the casual look, try using a wooden picnic table.
combinedfact: Sandpaper can be used to smooth tables.
formatted_question: What can be used to smooth tables? (A) backbones (B) keratin (C) sandpaper (D) sand dollar (E) lamphreys (F) wax paper (G) sponges (H) aluminum foil