Plucking
a. happens when large rocks smash against a river bed
b. is the way large boulders are transported by wind
c. happens when glaciers pull rocks from earth's surface
d. is how small, light particles are transported in water

(A) Happens when glaciers pull rocks from Earth's surface.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs