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

[Q]: The action of flushing the toilet, performed multiple times daily, is the single biggest use of water in the home.
[A]: What action, performed multiple times daily, is the single biggest use of water in the home?


[Q]: All enzymes have an optimal temperature and ph.
[A]: All enzymes have an optimal temperature and what?


[Q]: A ligament is a short band of tough connective tissue that connects bones together to form a joint.
[A]:
What is a short band of tough connective tissue that connects bones together to form a joint?