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.

[EX Q]: Fact: a windmill does not create pollution
[EX A]: What is safest to breathe around?

[EX Q]: Fact: if the amount of available food and water decreases in an environment then animals may leave that environment to find food and water
[EX A]: Which event can lead to the human caused change of an environment?

[EX Q]: Fact: decomposition increases amount of organic matter in soil
[EX A]:
Organic matter in soil can be increased by?