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

[Q]: When magma heats groundwater, it may come to the surface as a hot spring or a geyser.
[A]: When magma heats groundwater, it may come to the surface as a hot spring or a what?


[Q]: In science, something that always applies under the same conditions is called a scientific law.
[A]: In science, what do you call something that always applies under the same conditions?


[Q]: The main function of the spleen is to filter the blood and remove unwanted red blood cells.
[A]:
The main function of this organ is to filter the blood and remove unwanted red blood cells?