question: What sentence would provide a factual answer to this question: "Organisms exist only because of the energy from"

answer: the sun is the source of energy for life on Earth

question: What sentence would provide a factual answer to this question: "sound can be heard when it reaches what?"

answer: when sound reaches the ear , that sound can be heard

question: What sentence would provide a factual answer to this question: "Which is likely to rot?"

answer:
dead organisms rot