Considerations regarding how people move about city centers and densely populated areas are part of a process called as <u>high density community efficiency</u>
Answer: Option B
<u>Explanation:</u>
High density shows how concentrated or compact a particular thing is. High density places are crowded places. How people move about in densely populated areas is a part of a process known as high density community efficiency where the places are very crowded and are packed.
Places with high density have population which are higher than the population density. The high density zones consist of one to ten and above dwelling units per acre.
Answer:Geographic featured that acted as norther borders of the Roman Empire at its height were: Rhine River, Danube River, Carpathian Mountains, and the Black Sea.
