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: On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.
Example Output: On a global scale, plants and other photosynthetic organisms have generated all of what element in the air?

Example Input: During phase change, the temperature of a system remains constant.
Example Output:
What happens to the temperature of a system during phase change?