Documents The Theory of Plate Tectonics. Earth’s Internal Layers The crust varies in thickness (4-60 km)...

The Theory of Plate Tectonics The Theory of Plate Tectonics 1 Earthâs Internal Layers The crust varies in thickness (4-60 km) oxygen, silicon, magnesium and iron The mantle…

Documents Processes that shape the planet.. Earth’s Internal Layers The crust (oxygen, silicon, magnesium...

The Theory of Plate Tectonics Processes that shape the planet. 1 Earthâs Internal Layers The crust (oxygen, silicon, magnesium and iron) The mantle (silicon & oxygen)…

Documents Processes that shape the planet.

The Theory of Plate Tectonics Processes that shape the planet. 1 Earthâs Internal Layers The crust (oxygen, silicon, magnesium and iron) The mantle (silicon & oxygen)…

Documents The Theory of Plate Tectonics

The Theory of Plate Tectonics The Theory of Plate Tectonics 1 Earthâs Internal Layers The crust varies in thickness (4-60 km) oxygen, silicon, magnesium and iron The mantle…