Question

what do you understand by plate tectonic what the reason of for its occurrence

Answer 1

a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.What causes the plates to move?

The force that causes most of the platemovement is thermal convection, where heat from the Earth's interior causes currents of hot rising magma and cooler sinking magma to flow, moving the plates of the crust along with them.

Answer 2

Answer:

Ans A tectonic plates( also called as lithospheric plate ) is a massive , irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere by contrast a oceanic crust is composed of basalt rocks, which are much denser and heavier . These plates move around very slowly. The movement of these plates causes changes on the surface of the earth.