The subject of science is very broad. With that being said, I think there is no official regulatory board that decides the branches of science. Scientific developments are products of joined efforts of different scientists. These scientists could rebuke another's work provided there is evidence. As long as the theory is generally accepted by the scientists and no one rebukes it effectively, then it is a generally accepted fact and everyone adapts it.
<span>C.megalopolis It consists of several large cities and suburbs that adjoin each other. L.A , San Diego and other cities adjoin each other. Hope this helps </span>
