Q: Fact: exercise has a positive impact on a human 's health
Question: Who would be healthier?

A: a sleeper

Q: Fact: sand dunes are made of sand
Question: The mounds at the beach are made of

A: silica

Q: Fact: coal mine is a source of coal under the ground
Question: Where's the best place to mine for coal?

A: mountains

Q: Fact: a flashlight emits light
Question: An unusual use for a flashlight may be

A:
hand warmer