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

Fact: sunlight contains ultraviolet light
Which promotes the creation of serotonin?

Fact: cooking food requires adding heat energy
what makes food cooking possible?