Earthquakes-Volcanoes-Plate+Tectonics

Plate Tectonics -- media type="youtube" key="Cm5giPd5Uro" height="315" width="560"

media type="youtube" key="6OHRb_ODo-Q" height="315" width="420" media type="youtube" key="AXkIgfSrvoM" height="315" width="560"

Earthquakes -- media type="youtube" key="CtBXTvtFaCU" height="315" width="420"

Volcanoes -- media type="youtube" key="Be7o6BYVOzA" height="315" width="560" media type="youtube" key="uZp1dNybgfc" height="315" width="420"