Succession is best described as
Succession is best described as
Explanation
Earths crust is divided into plates floating on the mantle. Plates move due to convection currents in the mantle. Movement is slow – centimeters per year.
Plate boundaries: divergent (plates move apart, new crust forms), convergent (plates collide, mountains/trenches form), transform (plates slide past, earthquakes).
This explains: earthquake and volcano distribution, mountain formation, continental shapes fitting together, similar fossils on different continents, seafloor spreading.