TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: The love canal tragedy was an infamous example of industrial waste dumping.

SOLUTION: Love canal was an infamous example of what type of pollution?

PROBLEM: Elements are pure substances that make up all matter.

SOLUTION: Elements are pure substances that make up what?

PROBLEM: Urea and carbon dioxide are molecules with one many carbon atoms.

SOLUTION:
Urea and carbon dioxide are molecules with how many carbon atoms?