Why is specialization a common result of free trade? O A. Worker safety agreements encourage production that uses skilled
labor.
B. Loss of import tax revenues forces countries to limit what they
manufacture.
C. Trade agreements determine what each country must produce.
O D. Competition encourages countries to specialize in what they do
best.

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.