Components of an ecosystem include A) soil, sunlight, water, and weather
B) grass, trees, bees, and ants
C) all the biotic and abiotic factors in an area
D) all of the above

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.