question: What sentence would provide a factual answer to this question: "what does a barometer do to air pressure"

answer: a barometer is used to measure air pressure

question: What sentence would provide a factual answer to this question: "What might have a negative impact on a child"

answer: harming something has a negative impact on that something

question: What sentence would provide a factual answer to this question: "How is a place of lower elevation affected by flooding when compared to a higher location?"

answer:
as elevation of a place decreases , how much a flood will affect that place will increases