The document discusses three major industries - iron and steel, textiles, and information technology. The iron and steel industry is a basic industry that uses iron ore, coal, and limestone as raw materials. These are smelted together in a blast furnace to produce pig iron, from which impurities are removed to produce pure iron and steel. Major producers include the US, UK, Russia, Japan, China, India, and Brazil. The textile industry satisfies the basic need for clothing. It uses natural fibers like cotton, jute, flax, wool and silk as well as synthetic fibers. Major cotton producing countries include India, Pakistan, the US and China. The wool industry is prominent in