Which of the following statements best represents how land serves as a natural resource? a. it regulates oxygen levels in the atmosphere. b. it produces freshwater. c. it generates hydroelectric power. d. it provides nutrients to crops.

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.