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

Input: Consider Input: Aerobic exercise helps improve the cardiovascular system, while anaerobic exercise causes muscles to get bigger and stronger.

Output: Aerobic exercise helps improve the cardiovascular system, while what exercise causes muscles to get bigger and stronger?


Input: Consider Input: Combustion reaction occurs when a substance reacts quickly with oxygen.

Output: What occurs when a substance reacts quickly with oxygen?


Input: Consider Input: Diverging lens do you call a lens that causes the light rays to bend away from its axis.


Output: What do you call a lens that causes the light rays to bend away from its axis?