question: What sentence would provide a factual answer to this question: "Lava is found above the ground because when there is lava there is"

answer: lava is found above the ground

question: What sentence would provide a factual answer to this question: "Which orbits a star?"

answer: planets orbit stars

question: What sentence would provide a factual answer to this question: "Processes in the food chain begin with"

answer:
In the food chain process a green plant has the role of producer