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d) An urban geographer's main role is to emphasize location and space and study the spatial processes that create patterns observed in urban areas.

a) To do this, they study the site, classification, evolution and growth of cities.

c) In order to fully understand each of these aspects of a city, urban geography represents a combination of many other fields within geography.

b) Physical geography, for example, is important in understanding why a city is located in a specific area as environmental conditions play a large role in whether or not a city develops.