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

[EX Q]: The term elastic potential energy is used to describe potential energy due to an object’s shape.
[EX A]: What term is used to describe potential energy due to an object’s shape?

[EX Q]: A student should use a balance to compare the masses of two small rocks.
[EX A]: Which tool should a student use to compare the masses of two small rocks?

[EX Q]: A desmosome is a cell structure that anchors the ends of cardiac muscle fibers together.
[EX A]:
A desmosome is a cell structure that anchors the ends of what fibers together?