The Earth + Atmosphere
The earth consists of three main parts.
Core, Crust + Mantle.
The earth's Crust and upper part of the mantle are cracked into LARGE pieces called TECTONIC PLATES.
These plates move very slowly: a few cm per year.
They move because there are CONVECTION CURRENTS deep within the mantle.
They are caused by RADIOCATIVE PROCESSES.
- Created by: CatherineFrances
- Created on: 08-10-11 12:34
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