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.
Key Difference â Ferrous and Nonferrous Alloys. An alloy is a metal made of two or more metallic elements to enhance strength and corrosion resistance. The key difference between ferrous and nonferrous alloys is that ferrous alloys contain iron in their composition whereas non-ferrous alloys do not contain iron as an element. Both of these alloys are extensively used in the modern industrial and engineering applications, but for different uses.