question: What sentence would provide a factual answer to this question: "what celestial body is after the 8th one in this solar system?"

answer: Pluto is the planet that is ninth closest to the Sun

question: What sentence would provide a factual answer to this question: "An amoeba is a unique individual that"

answer: a single-cell organism can survive without the help of other cells

question: What sentence would provide a factual answer to this question: "chemical reactions cause"

answer:
chemical reactions cause chemical change