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.
Ferrous Metals. The following are ferrous metals and the kind of uses to which they are usually put: 1  Mild Steel â Carbon content of 0.1 to 0.3% and Iron content of 99.7 â 99.9%. 2  Used for engineering purposes and in general, none specialised metal products.3  Carbon steel â Carbon content of 0.6 to 1.4% and Iron content of 98.6 to 99.4 %.he following are ferrous metals and the kind of uses to which they are usually put: 1  Mild Steel â Carbon content of 0.1 to 0.3% and Iron content of 99.7 â 99.9%. 2  Used for engineering purposes and in general, none specialised metal products.