What would result from the growth of a city?

Well a number of things but most likely, the resources would go down but probably not by much. I hope this as helped :D

Economically, urbanization causes prices to rise in real estate, causing people to move away from the city because they can't afford to stay in the city. Environmentally, urbanization creates 'heat islands' which areas that have higher temperatures because there is less open land and vegetation. 

Each mans success depends on his own hard work