question: What do eyes require?
choices.text: Protein sand wind hairs antigen light cilia enzymes
choices.label: A B C D E F G H
fact2: Light is simply the one form of radiation our eyes can see.
combinedfact: eyes require light
formatted_question: What do eyes require? (A) Protein (B) sand (C) wind (D) hairs (E) antigen (F) light (G) cilia (H) enzymes