A fossil is evidence of a once living animal. A fossil is created when an animal dies in a mud or other soft dirt or sediment. Over time, the animal will decompose and leave t â¦ he bones. Over time, these bones will get covered by dirt, rocks water, etc.
It should say 'Fe'. 'Fe' as found in 'fe'rrous. Ferrous things contain iron because the metal 'iron' is represented by the symbol Fe. Something non-ferrous is devoid of iron. Thus, a non-ferrous metal is a metal (or a mixture of two or more metals) that contains inconsequential amounts or no amount of iron. They are therefore nonmagnetic and don't rust like ferrous metals do.
Summary: 1  There are two major categories of metals: ferrous metals and non-ferrous metals. 2  The word âferrousâ comes from the Latin word âferrum,â which means âanything that contains iron.â. 3  Ferrous metals are types of metals that contain iron while non-ferrous metals do not contain iron.