the provision of what is needed for the well-being or protection of a person or thing: He is under the care of a doctor. With proper care, the watch will last a lifetime. temporary keeping, as for the benefit of or until claimed by the owner: He left his valuables in the care of friends.
Iron is used more than any other metal for producing metal alloys. The most important iron alloys include cast iron, pig iron, wrought iron, and steel. There are various alloys of steel, but they all contain iron as the main metal. Carbon is one of the main alloying elements mixed with iron to make steel.
Iron Iron is a trace mineral needed to make hemoglobin, the protein needed to carry oxygen throughout the body. Hemoglobin gives red blood cells their color, and stores most of the body s iron supply.Iron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract.Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.Anemic individuals do not have an adequate supply of oxygen in their body, which leaves them tired, pale, and short of breath.ron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract. Although iron is a trace mineral, it is extremely important, because a deficiency in this nutrient leads to a shortage of red blood cells, a condition known as anemia.