Geography

Radiocarbon dating is a technique used by scientists to learn the ages of biological specimens – for example, wooden archaeological artifacts or ancient human remains – from the distant past. It can be used on objects as old as about 62,000 years. Here’s how it works. Radiocarbon dating relies on the carbon isotopes carbon-14 and … Read more

Most important sorts of ocean deposits are: Terrigenous Deposits Body of water Deposits. There are loose sediments, deposited on the ocean bottom. These are ocean deposits. They vary from location to location. The study of ocean deposits is vital in beneath standing the rocks exposed on the earth’s surface that were once set under ocean. … Read more

A fissure vent, also known as a volcanic fissure or eruption fissure, is a linear volcanic vent through which lava erupts, usually without any explosive activity. The vent is often a few meters wide and may be many kilometers long. Chinook : It is a local winds in steppe region. On the eastern slopes of the Rockies in Canada and U.S.A. a … Read more

Boosting Rural Development through Agri-infrastructure Most of the perishable items are produced in the villages which remain confined to these due to the absence of road networks. The existing road and rail facilities are inadequate. Most of the areas which produce good quality fruits are still inaccessible. This coupled with the rough terrain of the … Read more

Groundwater contamination is the adulteration of water because of the increase in the concentration of certain pollutants. The major pollutants contributing to contamination are Arsenic, fluoride, Iron, uranium , nitrate etc. Causes of groundwater contamination are: Natural: Groundwater naturally contains high amount of pollutant due to geological formation. For example occurrence of fluoride is related … Read more

Some air movements are the result of the systematic pressure gradients that arise from latitudinal changes in the Earth’s surface temperature. One notable example is the Hadley Cell, a movement of warm air from the tropics that rises, flows toward the poles and then cools and sinks at around 30 degrees north and south of … Read more

It is a kind of irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of the plants, either onto the soil surface or directly onto the root zones, through a network of valves, pipes , emitters etc. It is done through narrow tubes that deliver water directly to … Read more

When the wind blows parallel to a coastline, surface waters are pushed offshore and water is drawn from below to replace the water that has been pushed away. The upward movement of this deep, colder water is called upwelling. The deeper water that rises to the surface during upwelling is rich in nutrients. These nutrients … Read more

Geysers are fountains of hot water and superheated steam that may spout up to a height of 150 feet from the earth beneath. The phenomenon are associated with a thermal or volcanic region in which b the water below is being heated beyond boiling point. The jet of water is emitted with an explosion, and … Read more

.  Process of formation of the fronts is known as frontogenesis. There are four types of fronts: Cold Front When the cold air moves towards the warm air mass, its contact zone is  called the cold front. As the cold front nears your region, the barometer falls.  The cold  air behind the front wedges under … Read more