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

[Q]: Photoautotrophs and chemoautotrophs are two basic types of autotrophs.
[A]: Photoautotrophs and chemoautotrophs are two basic types of what?

[Q]: You see a faster reaction rate when the concentration of reactants is higher.
[A]: What kind of reaction do you see when the concentration of reactants is higher?

[Q]: Biodiversity helps ensure that, at least, some species will survive environmental change.
[A]:
What helps ensure that, at least, some species will survive environmental change?