question: What sentence would provide a factual answer to this question: "a scuba diver startles an octopus, and suddenly the water changed color, what happened?"

answer: ink is used for hiding from predators by octopuses

question: What sentence would provide a factual answer to this question: "Which can be said to have the most volume?"

answer: the volume of an object can be used to describe the size of that object

question: What sentence would provide a factual answer to this question: "The moon"

answer:
the moon does not contain water