OPSC Prelims and Mains Notes-OPSC Test Series
Physical Factors: (a) Terrain, Topography, and Altitude dependent on the geo-ecological conditions; terrain, topography, slope and altitude. paddy cultivation requires leveled fields, tea plantations perform well in the undulating topography in which water does not remain standing. Orchards of coconut are found at low altitudes, preferably closer to the sea level, while the apple orchards … Read more
Landform Each landform has its unique physical shape, size, materials and is a result of the action of certain geomorphic processes and agent(s). Every landform has a beginning. Landforms once formed may change in their shape, size and nature slowly or fast due to continued action of geomorphic processes and agents. Due to changes … Read more
Climatic Regions of India : Koeppen’s Classification Climate Type Climatic Region Annual Rainfall in the Region Amw (Monsoon type with shorter dry winter season) Western coastal region, south of Mumbai over 300 cm As (Monsoon type with dry season in high sun period) Coromandel coast = Coastal Tamil Nadu and adjoining areas of Andhra Pradesh … Read more
the syllabus states that -mazor crops,cropping patterns in various parts of the country,different types of irrigation system,storage,transport and marketing of agricultural product,and issues related to constraints,e-tec hnology in the aid of farmers….the link for yojna January 2011 for agriculture is for dowloading dere would be a link as download pdf also ncert geography land use … Read more
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
WHITE REVOLUTION IN INDIA The package programme adopted to increase the production of milk is known as White Revolution in India. The White Revolution in India occurred in 1970, when the National Dairy Development Board (NDDB) was established to organize the dairy development through the co-operative societies. Varghese Kuerin was the father of White … Read more
The atmospheric disturbances which involve a closed circulation about a low pressure centre, anticlockwise in the northern atmosphere and clockwise in the southern hemisphere are called cyclones. They fall into the following two broad categories: (a) Extra-tropical or Temperate and (b) tropical cyclones. (a) Temperate Cyclones Temperate cyclones are formed along a front … Read more
SERICULTURE IN INDIA Production Silkworm larvae are fed on mulberry leaves and after the fourth molt, they climb a twig placed near them and spin their silken cocoons. The silk is a continuous-filament fibre consisting of fibroin protein, secreted from two salivary glands in the head of each larva, and a gum called sericin, which … Read more
Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side. Earthquake ray paths and arrival times are more complex than illustrated in the animations, because velocity in the Earth does not simply increase with depth. Velocities generally … Read more
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