Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Respiratory acidosis is considered to be problematic because excess co2 in blood.

Answer: Why is respiratory acidosis considered to be problematic?

Question: Glycolysis is a series of reactions that is common to fermentation and cellular respiration.

Answer: What series of reactions is common to fermentation and cellular respiration?

Question: Evidence allows theories to be widely accepted.

Answer:
What allows theories to be widely accepted?