The Theory of Plate Tectonics
What is the Theory of Plate Tectonics? First of all, the theory of plate tectonics includes volcanoes, earthquakes, the mountain building process, and the geological movements and the connection of the plates (continental drift). The theory states that there are 7 different plates; the African, North American, South American, Eurasian, Australian, Antarctic, and Pacific plates. Every year the plates move a little bit (about 2 - 10 cm).