Biology, 28.10.2019 22:31, ethanberry9960

Which statement best describes the theory of plate tectonics?
plates sometimes move closer to one another.
sections of earth that shift are part of earth's asthenosphere.
sections of earth's continents are in slow, constant movement.
parts of the ocean floor move as they are carried by rift valleys.
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Which statement best describes the theory of plate tectonics?
plates sometimes move closer to...