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

Once a plant cell becomes specialized, divide can they no longer do.
Once a plant cell becomes specialized, what can they no longer do?

Process of desalinization helps provide cleaner water for agriculture.
Which process helps provide cleaner water for agriculture?

Electromagnetism magnetism is produced by electricity.

What magnetism is produced by electricity?