Agroup of aldermen and alderwomen is discussing their city's future but want first to understand its past. they are studying historical records of residential and commercial migration patterns, immigrant clusters, and functionalities of different areas. in general, they're looking at how and why residents might have moved and settled where they did. it would be if the group had a thorough understanding of

Urban ecology

Explanation:

According to my research on city development studies, I can say that based on the information provided within the question It would be helpful if the group had a thorough understanding of Urban Ecology. This is because Urban ecology is the scientific study of the relation of living organisms with each other and their surroundings in the context of an urban environment. Which would give them lots of insight on reasons why the people settled where they did.

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no the answer is c only objects touching the earth's surface can be acted upon by an outside force