question: What sentence would provide a factual answer to this question: "Which causes more matter vibration?"

answer: as the amount that matter vibrates increases , sound produced increases

question: What sentence would provide a factual answer to this question: "California experiences heavy earthquake activity due to"

answer: a tectonic plate moves along a fault line

question: What sentence would provide a factual answer to this question: "Electrical flow can be slowed down if there is an insulator"

answer:
an electrical insulator slows the transfer of electricity