diverging plate boundary

Any lithospheric plate boundary at which one plate is moving apart from another plate. Diverging plate boundaries in the marine environment form oceanic ridges. Rift valleys form when plates carrying continents separate under the land mass.

A theory that states that the Earth’s surface is composed of several sections of crust and solid upper mantle.

A system of volcanic mountains that form at diverging plate boundaries in all of the oceans

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Topic 12

Question	Answer
diverging plate boundary	Any lithospheric plate boundary at which one plate is moving apart from another plate. Diverging plate boundaries in the marine environment form oceanic ridges. Rift valleys form when plates carrying continents separate under the land mass.
plate tectonics	A theory that states that the Earth’s surface is composed of several sections of crust and solid upper mantle.
mid-ocean ridge	A system of volcanic mountains that form at diverging plate boundaries in all of the oceans