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

Example Input: Mercury is the name of the smallest planet in our solar system, which is also nearest to the sun.
Example Output: What is the name of the smallest planet in our solar system, which is also nearest to the sun?

Example Input: Very low density is the concentration of gas molecules in the mesosphere.
Example Output: What is the concentration of gas molecules in the mesosphere?

Example Input: A salt concentration of 32 percent is nearly ten times that of seawater abundant resource.
Example Output:
A salt concentration of 32 percent is nearly ten times that of what abundant resource?