How did railroads contribute to urban growth during the Second Industrial Revolution? by providing the greatest number of jobs by transporting raw materials and finished goods by transporting materials to parks and museums by providing immigrants with access to enclaves

Apart of the parietal lobe

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.