question: What sentence would provide a factual answer to this question: "If a brick is liquefied, then the weight of it"

answer: phase changes do not change mass

question: What sentence would provide a factual answer to this question: "a seismograph is a kind of tool for measuring the size of"

answer: a seismograph is a kind of tool for measuring the size of an earthquake

question: What sentence would provide a factual answer to this question: "Which item can be used more than once?"

answer:
something reusable can be used more than once