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: flippers are used for moving in water
A creature that can move through liquid easily due to flippers is?

Fact: fire causes harm to living things
If a thing experiences a burning combustion, then it is?

Fact: a plant requires sunlight to grow

Which most directly requires sunlight to grow?