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

Ex Input:
Potential energy type of energy is possessed by autumn leaves before they fall.

Ex Output:
What type of energy is possessed by autumn leaves before they fall?

Ex Input:
Fractional crystallization is the separation of compounds on the basis of their solubilities in a given solvent.

Ex Output:
What is the separation of compounds on the basis of their solubilities in a given solvent?

Ex Input:
Plants generally transport carbohydrates from leaves to roots and other nonphotosynthetic organs in the form of sucrose.

Ex Output:
Plants generally transport carbohydrates from leaves to roots and other nonphotosynthetic organs in the form of what?