World Geography
The ground water that occurs when flow of the subterranean water is not confined by the presence of impermeable layers is called

confined groundwater
unconfined groundwater
artesian
aquifer

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World Geography
The modern theory of plate tectonics states

that the oceanic crust is destroyed at areas where this crust type becomes subducted under the light
All of these
the convention currents within the earth's mantle cause the creation of new oceanic crust at the mid
the creation of oceanic crust and the drifting of continents

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