question: What sentence would provide a factual answer to this question: "As ipod sale plummet apple reports major"

answer: as the sale of a product decreases , the amount of money made by the person selling that product will decrease

question: What sentence would provide a factual answer to this question: "What could a person eat to avoid starvation?"

answer: lack of food causes starvation

question: What sentence would provide a factual answer to this question: "Your immune system would be less effective if you didn't get enough of this"

answer:
a human requires sleep to be healthy