What physical feature has the greatest effect on the climate of a region

Polar regions experience the greatest variation, with long periods of limited or no sunlight in winter and up to 24 hours of daylight in the summer. The Topography of an area can greatly influence our climate. Mountain ranges are natural barriers to air movement.

Explanation:

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answer

the best answer is c

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.