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

Example Input: You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.
Example Output: What do you call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission?

Example Input: In pupa stage of their life cycle do insects begin developing their wings.
Example Output: In what stage of their life cycle do insects begin developing their wings?

Example Input: The spines of a cactus help it survive because spines protect the cactus from animals.
Example Output:
How do the spines of a cactus help it survive?