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 battery in an electromagnet is active then the nail in the electromagnet will become magnetic

SOLUTION: A nail can attach to metals after it receives?

PROBLEM: Fact: tunnels in soil loosen that soil

SOLUTION: Why would soil be more loosely packed than it was the previous day?

PROBLEM: Fact: a desert environment is usually hot in temperature

SOLUTION:
What's usually hot in temperature?