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

[EX Q]: You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.
[EX A]: What do you call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission?

[EX Q]: Population is an important level of organization in ecology and the unit of microevolution.
[EX A]: What is an important level of organization in ecology and the unit of microevolution?

[EX Q]: In naming ternary compounds, the cation is stated first.
[EX A]:
In naming ternary compounds, which type of particle is stated first?