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: as the number of eggs laid by an animal increases , the number of eggs that hatch will increase
[EX A]: Which animal produces more eggs?

[EX Q]: Fact: grey clouds appear before precipitation
[EX A]: In the intermediary before rain falls, observers may note?

[EX Q]: Fact: the respiratory system takes in oxygen from the air
[EX A]:
The substance that the respiratory system takes in from the air is released by?