Succession is best described as

Succession is best described as

  1. a process whereby different organisms systematically colonize a barren habitat until a stable community is formed ✓
  2. a process whereby animals occupy a barren habitat until a suitable habitat is formed
  3. a process whereby plants occupy a barren habitat until a suitable habitat is formed
  4. the replacement of weaker plants and animals by the stronger ones

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.