Which of the following regions can be defined by its physical boundaries? A. O New England
B.
The Midwest
C
Colorado
D. Hawaii

D. Hawaii. This is because it is an island.

Increased profits reduced health risks

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.