Final answer:
Earth's plates are currently drifting on mantle currents.
Step-by-step explanation:
Earth's plates are currently drifting on mantle currents. The Earth's lithosphere is divided into several large plates, which float and move on the semi-fluid asthenosphere of the mantle. These mantle currents are driven by heat from the Earth's core, causing the plates to move slowly over time.
Learn more about Plate Tectonics