question: What sentence would provide a factual answer to this question: "Reflectors are used to reflect light on"

answer: a reflector is used to reflect light especially on vehicles

question: What sentence would provide a factual answer to this question: "When a baseball is hit with a bat the ball particles do what?"

answer: hitting an object causes the particles in that object to vibrate

question: What sentence would provide a factual answer to this question: "Desalinating water from the ocean does what to nearby fish?"

answer:
oceans cover 70% of the surface of the earth