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

Example Input: Age causes reduction of elasticity in all organs.
Example Output: What causes reduction of elasticity in all organs?

Example Input: At a convergent plate boundary, when one plate is oceanic, there are large volcanoes.
Example Output: At a convergent plate boundary, when one plate is oceanic, there are large what?

Example Input: One gram of sugar or starch provides 4 calories of energy.
Example Output:
How many calories of energy does one gram of sugar or starch provide?