Basically physical and chemical weathering (do not confuse with erosion, which involves movement) contribute to the destruction of mineral forms. In this case it breaks down the rocks, minerals and soils, creating slopes and hills. It may be caused by (any form of) water, wind, gravity, waves or sunlight.
The person in top if me is right
That would be B. Latin America
A river is not considered wetland. Wetlands are muddy areas with no distinguishable waterflow, usually
