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All Answers (14) 1  Movement of plate tectonics causes a change in the ocean currents and in turn generates more heat. Shifting of these tectonic plates result in the creation of the volcanic eruptions increases the degree of carbon dioxide (CO2) and sulphur dioxide (SO2) in the atmosphere that also leads to a rise in the temperature levels.
A principal source of the heat that drives plate tectonics is the radioactive decay of uranium, thorium, and potassium in Earthâs crust and mantle. Characteristics. The mantle differs substantially from the crust in its mechanical properties as the direct consequence of the difference in composition (expressed as different mineralogy).