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 time spent taking a shower decreases , water used will decrease
Spending less time in the shower?

Fact: the looseness of soil increases the amount of oxygen in that soil
If soil is loose, it makes it what for oxygen to get in?

Fact: as distance from an object decreases , that object will appear larger

If you wanted the visual effect of being closer to something without moving, what would you use?