question: What sentence would provide a factual answer to this question: "As the population of zebra decreases"

answer: as the population of prey decreases , competition between predators will increase

question: What sentence would provide a factual answer to this question: "What might happen in an Earthquake?"

answer: an earthquake changes Earth 's surface quickly

question: What sentence would provide a factual answer to this question: "Rain at the apex of a pyramid will end up"

answer:
water flows down a slope