Plate Tectonics

The theory of Plate Tectonics is that the plates are drifting carrying continents with them. Also that the plates often break apart, they also collide creating mountains . This theory also proposes that the Earth's most outer layer, is broken up into 7 different plates: the North American, South American, Eurasian, Australian, Antarctic, and the Pacific plate. These plates are moving about 2 cm to 10 cm a year. The lithospheric plates moves due to the convection currents occuring in the mantle. Earthquakes are also caused by sudden movements of plates rubbing into each other.