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

[Q]: Hookworms infest the intestines.
[A]: What part of the body do hookworms infest?


[Q]: Living organisms are made up of biochemical type of carbon-based compounds.
[A]: Living organisms are made up of what type of carbon-based compounds?


[Q]: An excess of fertilizers and other nutrients causes eutrophication to occur.
[A]:
What causes eutrophication to occur?