question: Black sand can do what to the sun?
choices.text: protection heating destruction saves lives Injure them damaging block out danger
choices.label: A B C D E F G H
fact2: Black sand is volcanic ash.
combinedfact: Black sand can block out the sun
formatted_question: Black sand can do what to the sun? (A) protection (B) heating (C) destruction (D) saves lives (E) Injure them (F) damaging (G) block out (H) danger