question: What sentence would provide a factual answer to this question: "Hummingbirds gather nectar using their"

answer: a skinny beak is used for obtaining food by a bird from small spaces

question: What sentence would provide a factual answer to this question: "What is most likely to push objects?"

answer: flowing liquid can push objects

question: What sentence would provide a factual answer to this question: "What does a hand dryer produce?"

answer:
a hand dryer produces heat