GPSC Prelims and Mains Notes, GPSC Test Series
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 Describe the major iron ore mining areas of the world. 4 marks 2010
The temperature is the measurement in degrees of how hot (or cold) a thing (or a place) is. The temperature of the atmosphere is not same across the Earth. It varies in spatial and temporal dimensions. The temperature of a place depends largely on the insolation received by that place. The interaction of insolation … Read more Horizontal and vertical distribution of temperature, inversion of temperature
They are aggregates or physical mixture of one or more minerals. Minerals on the other hand are made up of two or more elements in a definite ratio. They have a definite chemical composition. Crust is made up of more than 2000 minerals, but out of these, 6 are the most abundant and … Read more Major types of rocks and their characteristics
Indian subcontinent can be divided into following Physiographic regions:- 1- The Northern Mountain Region 2- The Great Northern Plains 3- The Great Peninsular Plateau (Deccan Plateau) 4- The Coastal Plains 5- The Great Indian Desert 6- The Island Groups. 1- The Northern Mountain Region The Great mountain region extends uninterrupted for 2500 km from … Read more Divide India into major physio-graphic regions and describe anyone of them. 6 marks 2010
A tsunami is a very long-wavelength wave of water that is generated by sudden displacement of the seafloor or disruption of any body of standing water. Tsunami are sometimes called “seismic sea waves”, although they can be generated by mechanisms other than earthquakes. Tsunami have also been called “tidal waves”, but this … Read more Tsunamis
Alfred Wegner was a German Meteorologist in the early 1900s who studied ancient climates. Like most people, the jigsaw puzzle appearance of the Atlantic continental margins caught his attention. He put together the evidence of ancient glaciations and the distribution of fossil to formulate a theory that the continents have moved over the … Read more Wegner’s Continental Drift Theory
Earthquakes occur when energy stored in elastically strained rocks is suddenly released. This release of energy causes intense ground shaking in the area near the source of the earthquake and sends waves of elastic energy, called seismic waves, throughout the Earth. Earthquakes can be generated by bomb blasts, volcanic eruptions, sudden volume changes in … Read more Earthquakes
The ultimate source of atmospheric energy is in fact heat and light received through space from the Sun. This energy is known as solar insolation. The Earth receives only a tiny fraction of the total amount of Sun’s radiations. Only two billionths or two units of energy out of 1,00,00,00,000 units of energy … Read more Insolation,heat budget of the earth
Organic farming system in India is not new and is being followed from ancient time. It is a method of farming system which primarily aimed at cultivating the land and raising crops in such a way, as to keep the soil alive and in good health by use of organic wastes (crop, animal and farm … Read more Organic Agriculture. 4 marks 2008
Institutional Factors of Agriculture (1) Land Tenure and Land Tenancy (ii) Land Holding LAND REFORMS IN INDIA The basic objective of land reform is to do social justice with the tillers, land owners, landless labourers, and rural community with the set objective to provide security to the cultivators, to fix a rational rent, the conferment … Read more Institutional Factors of Agriculture (1) Land Tenure and Land Tenancy (ii) Land Holding