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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.
Convection currents in the magma drive plate tectonics. Heat generated from the radioactive decay of elements deep in the interior of the Earth creates magma (molten rock) in the aesthenosphere. The aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the Earth that extends to 2900 km.