Isothermal Lines

Isothermal Lines The “isothermal process”, which is thermodynamic process in which the temperature of a system remains constant. The transfer of heat into or out of the system happens so slowly that thermal equilibrium is maintained. “Thermal” is a term that describes the heat of a system. “Iso” means “equal”, so “isothermal” means “equal heat”, … Read more

Housing in India

Housing in India Issues related to housing sector in India Un-planned growth of settlements  A number of housing clusters have mushroomed in and around various metropolitan centres in haphazard and unplanned manner, without a proper layout and devoid of service lines and other essential facilities. These unauthorized developments are encroachments on land parcels belonging to … Read more

Spherical Coordinates and Projections,Time

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


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


Mountains Mountain, landform that rises prominently above its surroundings, generally exhibiting steep slopes, a relatively confined summit area, and considerable local relief. Mountains generally are understood to be larger than hills, but the term has no standardized geological meaning. Very rarely do mountains occur individually. In most cases, they are found in elongated ranges or … Read more


 NATURAL RESOURCES OF INDIA What are natural resources ? Natural resources are useful raw materials that we get from the Earth. They occur naturally, which means that humans cannot make natural resources. Instead, we use and modify natural resources in ways that are beneficial to us. The materials used in human-made objects are natural … Read more

Role Of Agriculture In Indian Economic Development

 Role of agriculture in Indian economic development-interrelationship between agriculture, industry and service sectors Role of agriculture in Indian economic development Contribution to National Income From the very beginning, agriculture is contributing a major portion to our national income. In 1950-51, agriculture and allied activities contributed about 59 per cent of the total national … Read more

Biosphere Reserves Of India

 Biosphere reserves What is a Biosphere Reserve? A Biosphere Reserve is a special ecosystem or a specialized environment with a flora and fauna that require protection and nurturing. These reserves are managed and studied for the conservation of various life forms found here. They are subjects of scientific and … Read more

Lunar Eclipse

 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 … Read more

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