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

[Q]: If the amount of force of that is applied is increased, it is easier happens to the work that a machine is producing.
[A]: If the amount of force of that is applied is increased, what happens to the work that a machine is producing?


[Q]: The best way humans can conserve water is to use less.
[A]: What's the best way humans can conserve water?


[Q]: Environmental contaminants is one problem with current methods of aluminum production.
[A]:
What is one problem with current methods of aluminum production?