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

[EX Q]: Plasma matter makes up most of the universe.
[EX A]: What type of matter makes up most of the universe?

[EX Q]: Certain air pollutants form acid liquid when dissolved in water droplets in the air.
[EX A]: Certain air pollutants form which liquid when dissolved in water droplets in the air?

[EX Q]: Bioterrorism is a threat against civilized people called.
[EX A]:
What is a threat against civilized people called?