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The temperature of the earth reduces from the core (hottest) to the mantle and then the crust that is either continental crust (carrying earth) or oceanic (carrying water). The crust is made up from plates. the plates move with via the convection currents cause by the radioactive break down of the earths core. This movement is called Plate tectonics . It is plate tectonics that cause the creation of volcano's and earthquakes at a point where the plates meet. the diagram below shows the earth plates.
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The plates have moved over many millions of years to form the continents as they currently exist.
The Earth's plates move in different directions
Plates behave differently at different plate boundaries:
1. At a tensional, constructive or divergent boundary the plates move apart.
2. At a compressional, destructive or convergent boundary the plates move towards each other.
3. At a conservative or transform boundary the plates slide past each other.
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The movement of tectonic plates creates dramatic volcanic eruptions and earthquakes over which the human world has no control, although attempts have been made to manage the effects obviously not the causes.
great post! very helpful. keep it up!
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