Which large-scale geological process, driven by heat escaping from the interior, is primarily responsible for the slow, cyclical movement of the Earth’s tectonic plates?

💡 Explanation:

Mantle convection is the fundamental mechanism driving plate tectonics. Hot, less dense material rises from deep within the mantle, while cooler, denser material sinks, creating slow circulation currents that drag the lithospheric plates across the Earth's surface.