Plate tectonics and boundries
Updated: 5/12/2020
Plate tectonics and boundries
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  • The theory plate tectonics was noticed by German scientist Alfred Wegener. He noticed that the coast lines Africa and South America looked like they could fit together.He also discovered evidence that the same plant and animal fossils were found along the coasts of these continents, although they were now separated by vast oceans. (Leaner.org)
  • The modern plate tectonics theory, which has become widely accepted since the 1960s, states that the earth's outer layer, or lithosphere, is broken into several large slabs called plates. These plates, which hold the continents and oceans, are slowly but constantly moving around the planet. (Leaner.org)
  • The border between two tectonic plates is called a boundary. All the tectonic plates are constantly moving very slowly around the planet, but in many different directions.A convergent boundary occurs where two plates are pushing toward each other. A divergent boundary marks two plates that are moving apart from each other. A transform boundary occurs where two plates slide past each other. (Learner.org)
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