Given a statement, generate a question such that the answer is contained in that statement.

[EX Q]: Triceps tighten causing a person's elbow to straighten.
[EX A]: What tightens causing a person's elbow to straighten?

[EX Q]: Forming fossil fuels requires decomposing vegetation.
[EX A]: What is required to form fossil fuels?

[EX Q]: Some species of cold blooded animals can go several weeks between eating
[EX A]:
How long can some cold blooded animals go between eating and eating?