Describe the processes that likely led to the formation of the rock and the canyon wall?

It was most likely weathering and erosion. The grand canyon was originally a large river! This river most likely wore away and dragged off particles from the (to be formed) canyon. over time, these processes would certainly be able to form a structure like the grand canyon.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a