Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: Changing the shape of an elastic material gives it potential energy.

Output: Changing the shape of an elastic material gives it what type of energy?


Input: Consider Input: Water affects the availability of oxygen important element in aquatic environments and in flooded soils.

Output: Water affects the availability of what important element in aquatic environments and in flooded soils?


Input: Consider Input: Reducing the number of molecules in a rigid container causes pressure to decrease.
Output: Reducing the number of molecules in a rigid container causes what to decrease?