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

Example Input: A student should use a balance to compare the masses of two small rocks.
Example Output: Which tool should a student use to compare the masses of two small rocks?

Example Input: The love canal tragedy was an infamous example of industrial waste dumping.
Example Output: Love canal was an infamous example of what type of pollution?

Example Input: Mushrooms get their energy from decomposing dead organisms.
Example Output:
Where do mushrooms get their energy?