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

[EX Q]: You call materials that have high resistance to electric current electric insulators.
[EX A]: What do you call materials that have high resistance to electric current?

[EX Q]: Soft of these best describes the way a feather feels.
[EX A]: Which of these BEST describes the way a feather feels?

[EX Q]: The presence of a nucleus is the main difference between prokaryotic or eukaryotic cells .
[EX A]:
What is the main difference between prokaryotic or eukaryotic cells ?