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

Example Input: Constant random motion trait of particles causes even cold objects to have some thermal energy.
Example Output: Which trait of particles causes even cold objects to have some thermal energy?

Example Input: Catalyst gets poisoned happens if a molecule forms strong bonds to the catalyst.
Example Output: What happens if a molecule forms strong bonds to the catalyst?

Example Input: Violet and red are two types of visible light.
Example Output:
Violet and red are two types of what kind of light?