Aforce that slowly wears away mountains and other features on the surface of earth is?

A destructive force, or where you looking for an example? 

A destructive force such as nature or even people 

Ifound this information on google “yes. they have a mouth and brain at one end and an anus at the opposite end. what characteristics distinguish an annelid from other worms? annelids have segmented bodies and a coelem which is a tube filled with fluid and contains most of the organs.“ i hope it you