question: What sentence would provide a factual answer to this question: "A boy leaves a circuit in the wall open, then when he goes to turn on the lights"

answer: electricity can not flow through an open circuit

question: What sentence would provide a factual answer to this question: "After extensive logging activity, a forest had less"

answer: cutting down trees in a forest causes the number of trees to decrease in that forest

question: What sentence would provide a factual answer to this question: "Bears hibernate in winter because"

answer:
seasonal changes are made in response to changes in the environment