I think the correct answer is weathering. It is this process where rocks are break into tiny fragments by air, water and ice. It breaks down or loosens surface so they are transported away. Hope this answers the question. Have a nice day.
The way florida is, it’s a big part of it.
True, located northeast of North Korea and on the coast of the Sea of Japan (The Tartary Straight down to the Korean Straight)
Sedimentary rock? my best guess