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

Ex Input:
Population is an important level of organization in ecology and the unit of microevolution.

Ex Output:
What is an important level of organization in ecology and the unit of microevolution?


Ex Input:
Injuries can be prevented by getting proper rest and recovery.

Ex Output:
Injuries can be prevented by getting proper what?


Ex Input:
Density allows cut logs to float on water.

Ex Output:

What property allows cut logs to float on water?