Our Earth is unique in many ways. One of them is that our Earth is the only planet which has active plate tectonics. Earth crust floats on thick liquid rock of the mantle below. The crust then breaks in to various parts and we call them plates. These are the plates which cause earth quakes, volcanoes as they interact. So, Plate boundaries are place where plates meet. Talking about the plate boundary, there are three types: constructive, destructive ad transform.
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