Explain how each wave of colonialism impacted the current political map. Did the world powers at the time have a responsibility to assist the countries that they colonized, instead of simply leaving? Explain your answer.

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.