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

Ex Input:
Simple carbohydrates can be classified in terms of chain length.

Ex Output:
Which carbohydrates can be classified in terms of chain length?


Ex Input:
A electron microscope is used to see extremely small objects.

Ex Output:
What type of microscope is used to see extremely small objects?


Ex Input:
Reproduction in prokaryotic cells is by binary fission, enlargement and division.

Ex Output:

Reproduction in prokaryotic cells is by what process of growth, enlargement and division?