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.

Fact: as ability to preserve food increases , the ability to transport food increases
if a student needs to travel with their lunch for long distances, which of these would have the freshest meal?

Fact: sweat is used for adjusting to hot temperatures by some animals
A horse is kicked out of the barn on a hot summer's day, because the stalls need mucked, and the workers have difficulty cleaning around the horses. So the horse is standing in the field, in direct sunlight, and begins to overheat a bit. In order to stand the heat better, the horse?

Fact: the smell of rotting meat attracts flies

What would a fly find most compelling?