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

Input: Consider Input: Aqueous solution is used to describe a solution in which water is the solvent.

Output: What term is used to describe a solution in which water is the solvent?


Input: Consider Input: A frog develops (a/an) lungs as it changes from a tadpole to an adult frog.

Output: Which of the following structures does a frog develop as it changes from a tadpole to an adult frog?


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?