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

Ex Input:
Windchill describes what the temperature feels like when the wind is taken into account.

Ex Output:
What weather term describes what the temperature feels like when the wind is taken into account?

Ex Input:
Optics explains the behavior of visible light and electromagnetic waves.

Ex Output:
What type of physics explains the behavior of visible light and electromagnetic waves?

Ex Input:
Protons and neutrons are made of quarks, which are fundamental particles of matter.

Ex Output:
A fundamental particle of matter, protons and neutrons are made of these?