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

Example Input: Water plus other substances makes a(n) solution.
Example Output: Water plus other substances makes what?

Example Input: Carbon atoms have six neutrons as well as six protons.
Example Output: Carbon atoms have six neutrons as well as how many protons?

Example Input: When substances pass through the cell membrane without needing any energy, it is called passive transport.
Example Output:
When substances pass through the cell membrane without needing any energy what is it called?