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.

Input: Consider Input: Fact: landfills have a negative impact on the environment

Output: Which is a positive impact on the bio environment?


Input: Consider Input: Fact: microscope is used to see small things by making them appear bigger

Output: A minuscule thing could be seen easily with help from?


Input: Consider Input: Fact: ice wedging is when ice causes rocks to crack by expanding in openings


Output: Water solidifies in crevices in the asphalt and splits it apart by?