Answer:
The subject matter is the sky
Explanation:
I think some emotional benefits of music is that music could relieve stress and anxiety!
E = mc 2, equation in German-born physicist Albert Einstein's theory of special relativity that shows that the increased relativistic mass (m) of a body comes from the energy of motion of the body—that is, its kinetic energy (E)—divided by the speed of light squared (c 2)