Which statement describes the Plateau Indians’ belief about spirits? Spirits inhabit the natural world.
Spirits cause only negative ideas.
Spirits create only positive ideas.
Spirits inhabit the spirit world.

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.