erosion: the process by which topsoil material ... methanogenesis: is the process of formation of methane from the decomposition of organic matter by a group of microbes known as methanogens ...

An exhibition which shows how erosion has transformed a coastline ... move because they're all built on [which] has meant that the formation of the coast is vastly different to that of the 1800s." ...

The Double Arch has been subject to spalling and erosion from weather, wind and rain since its formation in the late Triassic ...

It is believed that erosion during the Snowball Earth period ... contributed to global Earth system disruption during the formation of the Great Unconformity. It appears, however, that only ...