Write short notes on : Chemical industry, Fertiliser Industry, Cement Industry,
Automobile , IT& Electronics Industry.
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Answer:
The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products.
The fertiliser industry is centred around the production of nitrogenous fertilisers (mainly urea), phosphatic fertilisers and ammonium phosphate (DAP) and complex fertilisers which have a combination of nitrogen (N), phosphate (P), and potash (K). India is the third largest producer of nitrogenous fertilisers.
Cement is the second most consumed substance in the world, and is second only to water consumption. A brief history of Portland cement sees that it was invented and produced in the UK in 1824 by an English bricklayer named Joseph Aspdin. He found that by Burning limestone and clay together at incredible heat (approx than 2700 degrees Fahrenheit) it made the two minerals fuse together. Once this newly created material was cool enough it was then ground down into a fine ash, this newly created substance could then be mixed with water and the resulting substance that when allowed to set, would be as hard as the Portland stone that gave it its name.
This article appeared in the Guardian on Thursday May 11 2006 on p1 of the technology section.Cement is one of the single most important materials relied upon in the world, without cement we would not be able to build houses, roads, bridges and other public structures that cement products help to build. We need cement to produce concrete; concrete is basically a mixture of two components: aggregates and paste. The paste is usually composed of Portland cement and water, and when mixed together it binds the fine and coarse aggregates together.
A typical mix is about 10 to 15% cement, 60 to 75% sand/aggregate, 10 to 20% water and 5 to 8%The manufacturing of cement is still one of the most energy consuming processes that is under taken in the world today. But a lot of development has and still is taking place within the cement manufacturing industry with a view to meeting the government targets of reducing the amount of greenhouse gases produced per tonne of cement manufactured.
“Cement industry is said to be one of the most environmentally hazardous materials in the world, adding more carbon dioxide to the atmosphere than the entire weight of the global airline industry” – quote from the Guardian Newspaper.
The automotive industry is a wide range of companies and organizations involved in the design, development, manufacturing, marketing, and selling of motor vehicles, some of them are called automakers. It is one of the world's most important economic sectors by revenue.
India is also a prominent auto exporter and has strong export growth expectations for the near future. Automobile exports grew 26.56 per cent during April-July 2018. It is expected to grow at a CAGR of 3.05 per cent during 2016-2026. In addition, several initiatives by the Government of India and the major automobile players in the Indian market are expected to make India a leader in the two-wheeler and four wheeler market in the world by 2020.
The electronics industry emerged in the 20th century and is today one of the largest global industries. Contemporary society uses a vast array of electronic devices built in automated or semi-automated factories operated by the industry. Products are primarily assembled from metal-oxide-semiconductor (MOS) transistors and integrated circuits, the latter principally by photolithography and often on printed circuit boards.
Explanation:
Nothing can make our life, or the lives of others people, more beautiful than perpetual kindness