Tag: commercial applications

Energy generated by using wind, tides, solar geothermal heat and biomass including farm and animal waste as well as human excreta is known as non-conventional energy. All these sources are renewable or inexhaustible and do not cause environmental pollution. Moreover, they do not require heavy expenditure.

• Minerals are naturally occurring inorganic solids that have a crystalline structure and definite chemical composition.
  
• Minerals are referred to as naturally occurring because they are formed through natural geological processes.

Mica is a shiny mineral and is used extensively in electrical and electronic industry. It has many properties which make it useful – it comes in thin layers, and is a non-conductor of electricity and heat. 

Barium is used for both industrial and medical purpose. It is obtained from the mineral Barite. Barium is used for making paper, rubber, clutches of cars. It is also used in radiology for x-rays of the digestive system.

Asbestos is a heat-resistant mineral, which is used extensively in many industries and also for household roofing. However, it is known to be very bad for the health of those working on them, and its use is now being banned all over the world. 

• Feldspar is an important ingredient in the manufacture of glass and an important raw material as well, because it acts as a fluxing agent, reducing the melting temperature of quartz and helping to control the viscosity of glass. 
• In the manufacturing of ceramics, feldspar is the second most important ingredient after clay.

 Commonly used to make cans, foil, and laminated paper or plastic packaging, aluminum is a lightweight, silvery white metal derived from bauxite ore, where it exists in combination with oxygen as alumina. Magnesium and manganese are often added to aluminum to improve its strength properties (Page and others 2003). Unlike many metals, aluminum is highly resistant to most forms of corrosion; its natural coating of aluminum oxide provides a highly effective barrier to the effects of air, temperature, moisture, and chemical attack.

Chrome is used for preparing ‘stainless steel’ utensils. Since it does not corrode (unlike iron or copper) it is used both for making utensils and also for storing industrial liquids like acids. 

Energy generated from natural sources like wind, tides, solar, geothermal heat, and biomass including farm and animal wastes is called non-conventional energy. It has following features like: it is pollution free, they are renewable and are abundant in nature. Among the given options petroleum is not an example of non-conventional energy resource.