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

Ex Input:
Eyespots do the cells in the front of a volvox typically develop to help swim towards light.

Ex Output:
What do the cells in the front of a volvox typically develop to help swim towards light?

Ex Input:
Zinc is active transition metal kind of metal.

Ex Output:
Zinc is what kind of metal.?

Ex Input:
Diverging lens do you call a lens that causes the light rays to bend away from its axis.

Ex Output:
What do you call a lens that causes the light rays to bend away from its axis?