General Knowledge - World Geography - Discussion

Discussion Forum : World Geography - Section 2 (Q.No. 48)

World Geography

48.

The modern theory of plate tectonics states

the creation of oceanic crust and the drifting of continents

the convention currents within the earth's mantle cause the creation of new oceanic crust at the mid oceanic ridges

that the oceanic crust is destroyed at areas where this crust type becomes subducted under the lighter continental crust

All of the above

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