question: What sentence would provide a factual answer to this question: "if a person eats a fruit, it is possible it was once which of these?"

answer: some flowers become fruits

question: What sentence would provide a factual answer to this question: "Chimpanzees dig for insects with sticks; what is another example of using tools?"

answer: An example of using tools is a chimpanzee digging for insects with a stick

question: What sentence would provide a factual answer to this question: "the phases of the moon change the appearance of what?"

answer:
the phases of the Moon change the appearance of the Moon