Notes and Study material for Exams
Spherical Coordinates and Projections,Time Spherical coordinates can be a little challenging to understand at first. Spherical coordinates determine the position of a point in three-dimensional space based on the distance ρ from the origin and two angles θ and ϕ. If one is familiar with polar coordinates, then the angle θ isn’t too difficult to … Read more
World Climate:- Climate and seasons, distribution of rain fall and climatic regions Climates and seasons Different parts of the world have different climates. Some parts of the world are hot and rainy nearly every day. They have a tropical wet climate. Others are cold and snow-covered most of the year. They have a polar climate. … Read more
Grassland Grassland, area in which the vegetation is dominated by a nearly continuous cover of Grasses. Grasslands occur in environments conducive to the Growth of this plant cover but not to that of taller Plants, particularly trees and shrubs. The factors preventing establishment of such taller, woody vegetation are varied. Grasslands are one of the … Read more
Rain Water Harvesting Water forms the lifeline of any Society. Water is essential for the Environment, Food Security and Sustainable Development. All the known civilizations have flourished with water source as the base and it is true in the present context too. Availability of drinking water and provision of sanitation facilities are the … Read more
World distribution of iron Ore reserves China China now emerged as a leading iron ore-producing country in the world. Till 1975, its production of iron ore in the world was only 6.5 per cent, but in year 2000, China produced 24.3 per cent iron ore of the world. This Percentage further increased to … Read more
Variation in the Population in various countries The Growth of Human Population: Four Major Periods or Stages An early period of hunters and gatherers This period ranges between the first evolutions of humans on this planet to the beginning of agriculture. During this period, it is estimated that the total population was … Read more
The Solar System The solar system consists of the Sun and its eight main planets, their satellites, asteroids, comets, meteors and other dwarf planets. The Sun is at the one of the two Centers of the Solar system and the planets revolving around it in elliptical orbits. Let us take a look at … Read more
Seasonal Climatic conditions in India Climate in India varies significantly from the permanently snow-capped Himalayas in the north to the tropics in the south. The country has four seasons. December to February is relatively dry and cool, March to May is dry and hot, from June to September predominating southwest maritime winds bring … Read more
Scheduled Caste Population composition of India Scheduled Castes are notified in 31 States/UTs of India and there are altogether 1,241 individual ethnic groups, etc. notified as Scheduled Castes in different States/UTs. There has been some changes in the List of SCs/STs in States/ UTs during the last decade. As per the 2011 Census … Read more
Rural – Urban continuum Rural- urban continuum, the merging of town and country, a term used in recognition of the fact that in general there is rarely, either physically or socially, a sharp division, a clearly marked boundary between the two, with one part of the Population wholly urban, the other wholly rural. … Read more