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: an animal requires nutrients for survival

SOLUTION: nutrients from food and water are necessary to an organism's?

PROBLEM: Fact: pollution is when humans pollute the environment with pollutants

SOLUTION: Pollution is?

PROBLEM: Fact: a lever is used for moving heavy objects

SOLUTION:
A lever is used to move objects that are?