TASK DEFINITION: Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
PROBLEM: Fact: if some nutrients are in the soil then those nutrients are in the food chain

SOLUTION: Nutrients in soil?

PROBLEM: Fact: processes sometimes produce waste products

SOLUTION: What product eventually will become human waste?

PROBLEM: Fact: electric devices require electrical energy to function

SOLUTION:
A refrigerator?