question: What sentence would provide a factual answer to this question: "A household appliance prepares food using electrical energy and"

answer: a toaster converts electrical energy into heat energy for toasting

question: What sentence would provide a factual answer to this question: "The wolf raises his family near a"

answer: animals live and feed near their habitats

question: What sentence would provide a factual answer to this question: "do ecosystems remain the same?"

answer:
ecological succession means entire communities in an ecosystem change over time