How water changes the earth's surface weathering, erosion, and depisition?

Weathering is the process in which a canyon is made for example. The water slowly takes off chunks of rocks over years and years until a canyon is formed. Erosion is the process in which beaches are destroyed. The water comes up, takes the sand into the ocean and finally after years and years there isn't a beach anymore.

I think the water changes the earth's surface by making the flood come which is how earthquake happen and with earthquake happening, the volcano will erupt.