In the past, the size of cities depended on the amount of food that could be produced in the surrounding areas.The most densely populated cities are distributed in the basin areas, such as the Nile River Basin, crescent undercover, and so on. With the development of the industrial revolution and the establishment of the factory system, a large number of people poured into the new industrial center.A large number of people in new cities can be fed by technological and medical advances to obtain food from all over the world, to fully supply pure water, to improve centralized drainage and garbage systems, to ensure an adequate food supply, and to prevent and control infectious diseases.These advances have made cities more comfortable and cities around the world have begun to develop actively and rapidly.
passage?
The industrial revolution has changed people's way of life