fact and question: high temperatures can cause an object to combust
Question: A dry bush may burst into flames due to

What's the answer?

answer: higher temps

fact and question: muscles pull bones to move the bones
Question: Muscles pull on bones in order to move them; which is an example of that?

What's the answer?

answer: shaking your head in frustration

fact and question: pushing a button sometimes completes a circuit
Question: Which likely completes a circuit?

What's the answer?

answer: your phone's keys

fact and question: a mirror is used for reflecting light
Question: Someone in a room without any lights on, but that has mirrors in it, can still have light in that room if

What's the answer?

answer:
a joined room is lit