Geology

Let’s Review!

• Earth is made up of four distict zones: the geosphere, the hydrosphere, the biosphere, and the atmosphere.
• The Earth is divided into three sections: the crust, the mantle, and the core.
• Plate tectonics is the theory that divides the geosphere into seven distict large plates: the African, North American, South American, Eurasian, Australian, Antarctic, and Pacific plates, as well as several smaller plates.