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: snow falls during the winter in some environments
In southern Africa we are more likely to see snow in?

Fact: rainfall is the amount of rain an area receives
What will be more available in an area when rainfall increases?

Fact: when a mineral is rubbed on a streak plate , some of the material breaks off and forms a powder

A piece of talc is rolled over on a black chalkboard and?