Help Are most of pennsylvania's boundaries physical (formed by natural features) or political (formed by people)?

They are political boundaries. Wherever they touch another state there is a political boundary!

Explanation:

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.