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

Example Input: Through a process called electromagnetic induction, generators change the kinetic energy of a spinning turbine to electrical energy.
Example Output: Through a process called electromagnetic induction, generators change what energy form of a spinning turbine to electrical energy?

Example Input: During the early paleozoic, the amount of carbon dioxide in the atmosphere was much greater compared to today.
Example Output: During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was?

Example Input: Mercury is the smallest planet in our solar system.
Example Output:
What is the smallest planet in our solar system?