Question

which part of the earth interior initiates movements of plates ? why ?

Answer 1

Answer:

the centre of the earth is very hot, and some of this heat moves outwards into the mantle. this heating is not the same all over the planet so some areas become hotter than others. heat, tries to level itself out, so heat energy moves from hot places to places that are cooler. as the rocks slowly move below the earth's surface ,they drag the crust that lies over them. this causes the plates to move

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Answer 2

Answer:

When the centre of the earth gets very hot, some of the heat moves towards the mantle. Some areas are warmer than others as not everywhere heating is same. This leads the movement of the rocks as heat moves to cooler places to level itself. When the rocks move below the earth’s surface, they drag the crust that lies above them, this causes plate movement. These plates are called as tectonic plates as they are the ones responsible for causing earthquakes when the movement of plates is severe.