Which statements describe the cyclic nature of seafloor spreading? check all that apply. continents are created. new oceanic crust is created. volcanoes erupt and produce more crust. old crust is destroyed at subduction zones. old crust is pushed away from oceanic ridges.

New oceanic crust is created.Old crust is destroyed at subduction zones.Old crust is pushed away from oceanic ridges.

Explanation;Seafloor spreading is a geologic process in which tectonic plates split apart from each other producing new seafloor.The process of seafloor spreading results from the mantle convection which is the slow, churning motion of the mantle. It occurs at divergent plate boundaries. Seafloor spreading occurs along mid-ocean ridges, and old crust is pushed away from the oceanic ridges. Oceanic crusts move slowly from oceanic ridges and sites of seafloor spreading making them cooler, more dense and thick.

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