Which of the following human activities does not increase the rate of erosion? A.
deforestation
B.
the cultivation of less land
C.
urbanization
D.
the use of land for grazing

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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.