instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.
answer:
What do you call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission?


question:
Bones are made up of different types of tissue.
answer:
Bones are made up of different types of what?


question:
Exact wavelength determines the color of visible light.
answer:

What determines the color of visible light?