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

[Q]: All life is built around the element carbon.
[A]: What element is all life built around?


[Q]: Natural resource type of resource is limited in supply and cannot be replaced except over millions of years.
[A]: What type of resource is limited in supply and cannot be replaced except over millions of years?


[Q]: Small intestine organ absorbs about 90 percent of the water you ingest.
[A]:
What organ absorbs about 90 percent of the water you ingest?