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

Example Input: 2 hydrogen, 1 oxygen atoms combine to make up a molecule of water.
Example Output: What atoms combine to make up a molecule of water?

Example Input: Most of the digestion reactions occur in the small intestine.
Example Output: Where do most of the digestion reactions occur?

Example Input: Streak is a more reliable trait or measure to identify minerals.
Example Output:
Which is a more reliable trait or measure to identify minerals?