In Johnson v. California, the Supreme Court reviewed California's unwritten policy of racially segregating prisoners each time they entered a new correctional facility, as a way of preventing gang-related violence. What was the Court's ruling, and why?

the atm that sounds like it should be the answer

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

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.

answer; can each be concretely realized in different ways;