What’s the rest of the question or is that it?
Sound waves or bounces off the wall and light waves are waves of light
I think the answer is c chemical change
Consider two variables said to be "inversely proportional" to each other. If all other variables are held constant, the magnitude or absolute value of one inversely proportional variable decreases if the other variable increases, while their product (the constant of proportionality k) is always the same.
