question: What sentence would provide a factual answer to this question: "When the demand for corn rises"

answer: as the use of a crop increases , the amount of crops planted will increase

question: What sentence would provide a factual answer to this question: "A thing that is weathered from a large item to tiny items has existed for an amount of time over between"

answer: weathering usually occurs over a period of many years

question: What sentence would provide a factual answer to this question: "What causes flooding?"

answer:
heavy rains cause flooding