According to the theory of seafloor spreading,molten rock is rising up along

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According to the theory of seafloor spreading, molten rock rises up along the mid-ocean ridges, creating new seafloor and pushing the existing seafloor outward. Trenches that border continental margins are associated with subduction zones, where one plate is forced beneath another, causing the seafloor to sink. Islands surrounding the Pacific volcanic rim are known as the Ring of Fire and are associated with volcanic activity caused by plate tectonics. Areas of sinking seafloor are also associated with subduction zones and do not involve the rising of molten rock.

According to the Theory of Seafloor Spreading,molten Rock Is Rising