- AWeathering and erosion are two names for exactly the same single process of rock breakdown described in physical geography textbooks
- BWeathering is the in-situ breakdown of rock, while erosion is the wearing away and transport of material by agents such as water, wind or ice
- CWeathering only occurs underwater on submerged coastal rock, while erosion only occurs on dry land surfaces above sea level
- DErosion breaks rock down in place through chemical and physical decay, while weathering transports the loosened fragments away