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

Ex Input:
Respiratory acidosis is considered to be problematic because excess co2 in blood.

Ex Output:
Why is respiratory acidosis considered to be problematic?

Ex Input:
Carbon 14 isotope of carbon is typically used to date ancient items.

Ex Output:
What isotope of carbon is typically used to date ancient items?

Ex Input:
Ocean water appears cyan because microbes in the water preferentially absorb red light.

Ex Output:
Ocean water appears cyan because microbes in the water preferentially absorb what color of light?