List of ferro-alloys:- 1. Nickel (Ni) 2. Manganese 3. Chromium (Cr) 4. Tungsten (W) 5. Cobalt (Co) 6. Vanadium (V) 7. Molybdenum (Mo). Ferro-Alloy # 1. Nickel (Ni): Nickel is a hard, silvery metal, making up only 0.008% of the earth's crust, though it is believed to constitute some 10% of the earth's interior core. Meteorites are also found to [...]
This article provides a list of four precious metals that are found in the world. Also learn about its uses and distribution. Metal # 1. Gold (Au): Gold has been known and used from the earliest days because of its high metallic lustre and its attractive yellow-reddish colour. It does not tarnish and can be fashioned into beautiful ornaments and [...]
Cocoa cultivation originated in tropical America but became commercially important only at the beginning of this century. The increased consumption of chocolate, rather than cocoa-drinking, was the chief cause of the rapid rise of the cocoa industry. Cocoa was first exported from the Gold Coast (Ghana) in 1891. Today Ghana is still the world's greatest producer and exporter of cocoa, [...]