TNPSC Prelims and Mains Notes-TNPSC Test Series
Drainage: Flow of water through well-defined channels. Network of such channels is called a drainage system . Drainage basin: An area drained by a river and its tributaries. Watershed: Boundary line separating one drainage basin from other. River basins are larger watersheds. Drainage pattern of an area depends on the geological time period, nature and … Read more
Secondary treatment is a biological treatment process used to stabilize the dissolved solids. Microorganisms (e.g., bacteria) feed on the organic solids (food) in the wastewater and convert the organics into a cellular or biological mass that can later be removed. These biological processes are aerobic processes. Oxygen must be provided for these aerobic organisms to … Read more
The Zoological Survey of India (ZSI), with its headquarters in Kolkata and 16 regional stations is responsible for surveying the faunal resources of India. Possessing a tremendous diversity of climate and physical conditions, India has great variety of fauna, numbering 89,451 species, which include protista, mollusca, anthropoda, amphibia, mammalia, reptilia, members of protochordata, pisces, aves … Read more
The global macroeconomic landscape is currently chartering a rough and uncertain terrain characterized by weak growth of world output. The situation has been exacerbated by; (i) declining prices of a number of commodities, with reduction in crude oil prices being the most visible of them, (ii) turbulent fnancial markets (more so equity markets), and … Read more
Coastal Ocean Monitoring and Prediction System (COMAPS) Being implemented from 1991. Assesses the health of coastal waters and facilitates management of pollution-related issues Programme was restructured and modified in 2000 2001 to include pollution monitoring; liaison, regulation and legislation; and consultancy services. 2.Land Ocean Interactions in the Coastal Zone (LOICZ) Launched in … Read more
The leading economists of the country differ in their opinion about the socioeconomic and ecological consequences of the policy of liberalisation.Liberalization has led to several positive and negative effects on Indian economy and society. Some of the consequences of liberalisation have been briefly described here: 1. Increase in the Direct Foreign Investment: The policy of … Read more
An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this solar system have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more
Iron ore plays a crucial role in the industrial development of a nation and various iron ore regions of the world are as follows:- 1- USA:- Lake Superior region, Northeastern region, southwestern region, western region. 2- Siegerland region of Germany. 3- China:- Manchuriyan deposits of Anshan, Yangtze valley and Hopie. 4- India:- Bihar and Orissa. … Read more
Addition of certain substances to the water such as organic, inorganic, biological, radiological, heat, which degrades the quality of water so that it becomes unfit for use. Putrescibility is the process of decomposition of organic matter present in water by microorganisms using oxygen. Water having DO (dissolved oxygen) content below 8.0 mg/L may be … Read more
History, Art, Culture, Literature, Tradition & Heritage of Rajasthan – Major Landmarks in the History of Rajasthan, Major Dynasties, their Administrative and Revenue System. Socio-cultural Issues. – Freedom Movement , Political Awakening and Integration – Salient features of Architecture – Forts and Monuments – Arts, Paintings and Handicrafts. – Important Works of Rajasthani literature. Local … Read more