Answer:
According to this theory, Earth's crust is broken into roughly 20 sections called tectonic plates on which the continents ride. ... Plate tectonics explains why Earth's continents are moving; the theory of continental drift did not provide an explanation. Therefore, the theory of plate tectonics is more complete.
Explanation:
Theory of continental drift states that the world was made up of a single continent. The theory of plate-tectonics, on the other hand, states that earth's surface is broken into numbers of shifting plates or slabs.
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