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

[Q]: Respiratory acidosis is considered to be problematic because excess co2 in blood.
[A]: Why is respiratory acidosis considered to be problematic?


[Q]: Oil is the most commonly used source of energy in the world.
[A]: What is the most commonly used source of energy in the world?


[Q]: The gas form of matter has neither a definite shape nor a definite volume.
[A]:
What form of matter has neither a definite shape nor a definite volume?