Which explanation for the sparse population in china's western regions is best? a) the region is subjected to typhoons. b) the region has been ruled by warlords. c) the region is dominated by desert and high elevations. d) the region remains destroyed from world war ii combat.

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.