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

Example Input: The heterotroph eats only or mainly plants.
Example Output: The heterotroph eats only or mainly what?

Example Input: Protist diseases in humans are caused by protozoa.
Example Output: What type of diseases in humans are caused by protozoa?

Example Input: Most fossils are found in sedimentary rocks because organisms can be preserved in sedimentary rock.
Example Output:
Why are most fossils found in sedimentary rocks?