Plate tectonics is driven by deep convection in Earth's mantle. In convection, hot material moves up in one place, while cooler material moves down in another place. Match the seafloor feature or plate tectonic process with up-going or down-going material. mid-ocean ridges down-going trenches down-going seafloor spreading down-going subduction down-going convergent boundary (ocean- ocean) down-going convergent boundary (ocean- continent) down-going divergent boundary down-going

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