Earth plate moves on top of the mantle like a leaf floats on water.
Explanation:
The Mantle, the layer below the Earth's crust, is majorly made up of molten Earth material, and thus, exists in the liquid form.
The plates above the Mantle that form the Earth's crust, also known as the 'tectonic plates', float on this molten Earth material present in the Mantle.
The plates often move to cause tremors on the Earth's surface, owing to the convection currents that are generated in the Mantle.
