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

[Q]: The best way humans can conserve water is to use less.
[A]: What's the best way humans can conserve water?


[Q]: You call the hard case that surrounds the soft parts of some animals the exoskeleton.
[A]: What do you call the hard case that surrounds the soft parts of some animals?


[Q]: The malleability of materials describes the ease in which they can be molded into thin sheets.
[A]:
What property of materials describes the ease in which they can be molded into thin sheets?