Rain Water Harvesting (1)

 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

 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

 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

Source Of Energy

 Conventional and New Source of Energy   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.   Two Main Sources of Energy:   … Read more

Solar Energy

 Solar Energy : Source, Solar heating devices, solar cooker solar cell   Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth  is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy … Read more

Solar System

 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

 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 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 #U2013 Urban Continuum

 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

Resources

 Distribution of major natural resources of World-Water, Soils,  Forests in reference to South and South-East Asia     Distribution of key natural resources across the world (including South Asia and the Indian subcontinent) Natural resources are highly valued because human beings are dependent on them to fulfil their fundamental needs that changes with … Read more

APPSC Mains Test Series 2020

20 Quality mock tests and GS Mains Notes

Mains Test Series and Notes

Mains Printed Notes (With COD)