Avolcanic eruption led to the formation of a tiny island. twenty years later, this island had many rich forms of life. what took place on this island?
a. primary succession
b. secondary succession
c. climax communities

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.