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

[EX Q]: Solid is characterized by molecules with minimal movement and strong forces between them.
[EX A]: Which state of matter is characterized by molecules with minimal movement and strong forces between them?

[EX Q]: Demagnetization is the process in which a magnet loses its magnetic properties.
[EX A]: What is the process called in which a magnet loses its magnetic properties?

[EX Q]: For social animals, communication essential.
[EX A]:
For what kind of animal is communication essential?