The answer to this is A. this is because, refraction with a light or sound wave changing its direction involve propagation,(in which propagation is the change in direction of a light or sound wave)
Use the inverse square law, thus if you move a distance of 3m away, the sound intensity decrease by 1/3^2= 1/9
When you have to wait some
True is the answer to this question I think.
Scientific law are proven scientific fact a theory isn’t it could be if you provide details of how it is a fact with investigations and observations,data and etc
