What catergory is Abraham in Mesopotamia egypt or Hebrews

I'm going to go with 1,982 feet because of all of the ice.                                               ps its this is not the answer go with d 6,500.

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.