question: What sentence would provide a factual answer to this question: "What are you unlikely to find in a canyon?"

answer: a canyon is made of rocks

question: What sentence would provide a factual answer to this question: "If a thistle is going to expand, it requires"

answer: an plant requires food for survival

question: What sentence would provide a factual answer to this question: "If a thing is being drawn to another thing of the same material, they are probably"

answer:
a magnet attracts magnetic metals through magnetism