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 is a common treatment for rheumatoid arthritis and osteoporosis because it helps promote healthy collagen in the body, copper may relieve aching joints and minimize loss in mineral bone density. An old folk remedy for arthritis calls for wearing a copper bracelet to reduce pain and inflammation.
How Much Copper In Your Body? The adult body contains between 1.4 and 2.1mg of copper per kilogramme of body weight. Hence a healthy human weighing 60 kilogrammes contains approximately a tenth of one gramme of copper. However, this small amount is essential to the overall human well-being.