question: What sentence would provide a factual answer to this question: "Sedans being powered by _______ is an example of an alternative fuel source"

answer: An example of creating an alternative fuel is turning plant material into fuel

question: What sentence would provide a factual answer to this question: "What loosens soil?"

answer: tunnels in soil loosen that soil

question: What sentence would provide a factual answer to this question: "The biggest things on the moon are"

answer:
the lunar surface contains many craters