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: cooking food to proper temperatures protects against food poisoning by killing bacteria and viruses
Preparing food at the proper temperatures?

Fact: a berry contains seeds
A person who wants to eat a watermelon may consider spitting out its?

Fact: if a weed is pulled then that weed is destroyed
A weed will only live in the?