Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Rubber is an example of a(n) insulators that does not allow electrons to move through them.
[EX A]: Rubber is an example of what type of substances that do not allow electrons to move through them?

[EX Q]: Cancer occurs most often in adults over fifty age.
[EX A]: Cancer occurs most often in adults over what age?

[EX Q]: Steppes is the term for dry climate regions at higher altitudes that have short grasses and low bushes.
[EX A]:
What is the term for dry climate regions at higher altitudes that have short grasses and low bushes?