Question

the study of the composition, structure, and properties of matter; the processes that matter undergoes; and the energy changes that accompany those processes best describes the science of

biology
physics
chemistry
astronomy

Explanation:

Chemistry focuses on the composition, structure, and properties of matter, along with the processes matter undergoes and associated energy changes. Biology is about living organisms, physics is more about forces and energy in a broader non - matter - specific context, and astronomy is about celestial objects.

Answer:

C. chemistry