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.

Example Input: Fact: acid rain has a negative impact on water quality
Example Output: If it starts raining acid rain you should?

Example Input: Fact: dropping something causes that something to fall
Example Output: Who famously explicated the science of dropping something?

Example Input: Fact: pollution is when humans pollute the environment with pollutants
Example Output:
Pollution is?