Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Fact: wind carries sand from one place to another place
2000 years ago, this method would likely have brought sand from the coast to the desert?

Fact: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side
The earth receives uneven amounts of UV rays due to?

Fact: a light bulb converts electrical energy into light energy when it is turned on

An example of a circuit would be?