question: What sentence would provide a factual answer to this question: "Extinction is the term for an organism which..?"

answer: if a population decreases to zero then that organism is extinct

question: What sentence would provide a factual answer to this question: "An ivory page will be able to"

answer: a white object reflects all visible light

question: What sentence would provide a factual answer to this question: "smoking will directly affect what?"

answer:
smoking causes direct damage to the lungs