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

Example Input: Macroevolution happens when forces of evolution work over a long period of time.
Example Output: What happens when forces of evolution work over a long period of time?

Example Input: You see a faster reaction rate when the concentration of reactants is higher.
Example Output: What kind of reaction do you see when the concentration of reactants is higher?

Example Input: Carbon dioxide is an example of a material that easily undergoes sublimation.
Example Output:
Carbon dioxide is an example of a material that easily undergoes what?