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

[Q]: Just as salty taste involves perception of sodium ions in saliva, sweet taste correlates with presence of glucose.
[A]: Just as salty taste involves perception of sodium ions in saliva, what taste correlates with presence of glucose?


[Q]: Water affects the availability of oxygen important element in aquatic environments and in flooded soils.
[A]: Water affects the availability of what important element in aquatic environments and in flooded soils?


[Q]: When water is heated by magma and makes its way to the surface and creates a(n) geyser.
[A]:
When water is heated by magma and makes it's way to the surface what is created?