APSC Prelims and Mains Notes, APSC Test Series
Sources of Energy: Conventional and Nonconventional Sources – Energy is one of the most important component of economic infrastructure. It is the basic input required to sustain economic growth. There is direct relation between the level of economic development and per capita energy consumption. Simply speaking more developed a country, higher … 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
FUNCTIONAL CLASSIFICATION OF TOWN AND PROBLEM OF HUMAN SETTLEMENT The definition of function varies across the disciplines. In political science it refers to duties, in mathematics it means the relationship between two variables and in geography it is synonymous to occupation. Geographers have classified towns on the basis of their site, situation, size, … 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
El Nino El Niño is the name given to the occasional development of warm ocean surface waters along the coast of Ecuador and Peru. When this warming occurs the usual upwelling of cold, nutrient rich deep ocean water is significantly reduced. El Niño normally occurs around Christmas and usually lasts for a few weeks to a few months. Sometimes … Read more
Oceans tides An ocean tide refers to the cyclic rise and fall of seawater. Tides are caused by slight variations in gravitational attraction between the Earth and the moon and the Sun in geometric relationship with locations on the Earth's surface. Tides are periodic primarily because of the cyclical influence of the Earth's rotation. … 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
Lunar Eclipse A lunar eclipse happens at a Full Moon, when the Moon’s tilted orbit brings it into the Earth’s shadow, which can then be seen cast onto the Moon. While not as spectacular as a total solar eclipse, a lunar eclipse is much easier to see; and a total lunar eclipse is an amazing … Read more
Rainfall: With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. At one extreme are areas like Cherrapunji, in the northeast, which is drenched each year with 11,000 mm of rainfall, and at the other extreme are places like Jaisalmer, in the west, which receives barely … 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 … Read more