The plates make up Earth's outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle.) Churning currents in the molten rocks below propel them along like a jumble of conveyor belts in disrepair. Most geologic activity stems from the interplay where the plates meet or divide.
Lithospheric plates interact at their boundaries through three main types: divergent, convergent, and transform. These interactions can lead to geological events such as earthquakes and volcanic activity. Understanding these interactions is crucial for comprehending Earth's dynamic processes.
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