Soils in different regions differ based on the
a. local climate
b. topography of the land
c. native organisms
d. all of the above
permafrost soil (gelisol) is
a. resistant to erosion
b. fragile
c. rich in microorganisms
d. a fast developing soil

Technology has affected regional settlement patterns in what ways? choose all that apply. climatic improvement strategies have improved crop productivity. mechanized agricultural methods have improved agricultural productivity. participation in the global economy has increased urbanization. population shifts from urban to rural areas has increased as a result of petroleum production. settlement areas have increased as a result of improved water storage and delivery systems.