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

Example Input: When water is heated by magma and makes its way to the surface and creates a(n) geyser.
Example Output: When water is heated by magma and makes it's way to the surface what is created?

Example Input: A vapor light produces visible light by electroluminescence process.
Example Output: A vapor light produces visible light by what process?

Example Input: Potential energy type of energy is possessed by autumn leaves before they fall.
Example Output:
What type of energy is possessed by autumn leaves before they fall?