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Lab:modeling water Erosion...

H

but there is no

i guess you forgot putting it.

it is either c or d and i know for sure it is not a or b

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.