Question

(i) Why do the plates move?​

Answer 1

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.

Answer 2

Explanation:

1.Tectonic plate moves due to the forces acting deep inside the earth like convection currents (movement of heat within the mantle) and gravity etc.

2.These forces acting inside the Earth brings the tectonic plates either towards each other (convergence of plates) or move away the tectonic plates from each other (divergence of plates).