question: What can happen to water to make it unsafe?
choices.text: changes form Pollution detrimental essential Earth disease Water VOCs and NOx
choices.label: A B C D E F G H
formatted_question: What can happen to water to make it unsafe? (A) changes form (B) Pollution (C) detrimental (D) essential (E) Earth (F) disease (G) Water (H) VOCs and NOx