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.
--------
Question: Fact: a flower is a source of nectar

Answer: What is a source of nectar?


Question: Fact: wood is a renewable resource

Answer: Wood can be reused to make a?


Question: Fact: as the amount of available water decreases , tree-growth rings will become narrower

Answer:
During a prolonged shortage of water, a tree's ability to add extra tissue and grow thick rings is slowed and the tree produces?