Q: Fact: the floating arrow on a compass always points towards the north
Question: The floating arrow on a compass points in the direction of where a group of hikers came from. In which direction are the hikers hiking?

A: south

Q: Fact: a greenhouse is used to protect plants by keeping them warm
Question: What is a greenhouse?

A: A place for foreign plants

Q: Fact: long ears are used for releasing heat by a jackrabbit
Question: Jackrabbits' hind legs are

A: elongated

Q: Fact: a switch is used to stop the flow of current in an electrical circuit
Question: A person wants a room that is artificially brightened to go back to darkness, so they

A:
adjust a switch