What does the theory of plate tectonics explain that continental drift theory could not explain? a. unusual distribution of fossils in the southern hemisphere b. evidence of glaciation in the plains of africa c. movement of continents despite the dense oceanic floor d. the jigsaw-like fit of the continents

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.

The mechanization of agriculture has resulted in all of the following excepta increased productionb. an increased ability to feed growing global populationsc. decreased erosion as a result of advanced planting machinesd. increased employment in the farming industry

What information is usually stamped on the side of a rifle's barrel?