Given a scientific passage and an answer, generate a question for the given answer.

Input: Consider Input: Passage: The composition of the magma determines if the rock is mafic, felsic, or intermediate. Answer: intermediate

Output: The composition of the magma determines if the rock is mafic, felsic, or what?

Input: Consider Input: Passage: Physics is the study of energy, matter, and their interactions. It is concerned with matter and energy at all levelsfrom the most fundamental particles of matter to the entire universe. Answer: physics

Output: Which branch of science is the study of energy, matter, and their interactions?

Input: Consider Input: Passage: Controlling muscles and maintaining balance are just two of the functions of the human nervous system. What else does the nervous system do?. Answer: controlling muscles
Output: What is one function of the nervous system in humans?