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

Input: Consider Input: How much is involved in the reaction does the coefficient in front of an element in a formula indicate.

Output: What does the coefficient in front of an element in a formula indicate?


Input: Consider Input: The mitochondria organelles are known as the "power plants" of the cell.

Output: What organelles are known as the "power plants" of the cell?


Input: Consider Input: Comet tails always point away from the sun instead of trailing behind the comet because dust particles recoil.


Output: Why do comet tails always point away from the sun instead of trailing behind the comet?