During the 1925 Scopes trial, the defense’s main argument was that Scopes was being discriminated against. Scopes had done nothing illegal. evolution was the latest scientific fad. evolution was scientific fact.

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.