Concepts of Geography Archive

Types of Clouds

Before learning about the types of clouds, lets first understand what are clouds?? What are clouds ? Clouds may be defined as agglomerate of several tiny water droplets, ice particles or mixture of both in the air, generally above the ground surface. How are they formed ? When air rises, it gets cooled due to

Green Revolution

Dr Norman Earnest Borlaug is credited for the development of new dwarf variety of wheat seed which led to green revolution in India. In the drought year 1964-65, Dr Borlaug introduced the seeds of HYV seeds of Wheat (dwarf and semi dwarf varieties) in northern region of India, which resulted in tremendous increase in productivity

Ocean Deposits

Ocean deposits are the unconsolidated sediments (Inorganic or Organic ) derived from various sources deposited on the oceanic floor. What are the sources of these ocean deposits ? These ocean deposits are derived from three major sources: 1- Terrigenous Sources 2- Volcanic Deposits 3- Pelagic Deposits What are Terrigenous Deposits ? Weathering is an ongoing

Heat Budget of the Earth

What is heat budget of the earth ? Heat Budget of the Earth is the balance between incoming solar  insolation and outgoing terrestrial radiation which maintains the average annual temperature of earth at 15 degree celcius. What do you mean by solar insolation ? Solar energy received by earth’s surface is called solar insolation. What


An earthquake is shaking of earth or vibrations on surface of earth. What is Focus of Earthquake? Point inside the surface of earth from where Earth Quake waves originate is called Focus of Earth Quake. What is epicenter of Earthquake? Point on the surface of earth above focus of earthquake or minimum distance from the

Plate Tectonics

Before studying Plate Tectonics Theory, let us first understand what a tectonic plate is. What is a Tectonic Plate? A tectonic plate is a hard rigid and elastic segment of lithosphere which is moving and floating over Aesthenosphere. A Plate contains three parts of lithosphere. 1- Crust 2- Moho Discontinuity 3- Hard and rigid part


What is Atmosphere? Atmosphere is complex fluidic system surrounding earth and bound to earth by gravity. This complex fluidic  system consists of physical mixing of * Gases * Water Vapours * Suspended Particulates What is the composition of Atmosphere? 1- Gases– Atmosphere consists of mixture of gases whose composition remains constant. a) Nitrogen b) Oxygen c) Argon d)

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