The last and highest rank of coal is anthracite. Unlike the other types of coal, this high-energy coal is hard and black, burning with little smoke. As different types of coal are used in different applications, varying processes and process engineering are required.
Copper has many important roles to play in maintaining a healthy body and some of its benefits include: Arthritis: Proper growth: Pigmentation to hair and eyes: Connective tissues: Brain Stimulation: Utilization of iron and sugar: Enzymatic reactions: Helps in stalling ageing: Increases energy production: Bactericidal properties: Thyroid glands: RB
The minerals present in Yam also play major roles in the body. Copper is very useful for the production of red blood cells and improves blood flow in the body. Iron further improves the blood circulation in the body. Manganese is used by the body as a co-factor for the antioxidant enzyme, superoxide dismutase (14).