question: Propulsion is used for what?
choices.text: flying satellites fertilization safe driving heated by the sun stargazing making bread Communication taking a nap
choices.label: A B C D E F G H
fact2: Earth-orbiting spacecraft are called satellites.
combinedfact: Propulsion is used for flying satellites.
formatted_question: Propulsion is used for what? (A) flying satellites (B) fertilization (C) safe driving (D) heated by the sun (E) stargazing (F) making bread (G) Communication (H) taking a nap