Geography

Shale gas refers to natural gas that is trapped within shale formations. Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce.  Typical components of oil shale gas are usually methane, … Read more

Overpopulation With increasing population, demands of the country increase which further results in depletion of resources.     Over-consumption and waste As the standards of living of people improves, they tend to consume more and waste even more. Deforestation and the destruction of ecosystems Forests are cut annually, to make space for multiplexes, residential complexes … Read more

Major irrigation projects The Lower Bhavani Project  The Lower Bhavani project was one of the British achievements in the Tamil country. For the preliminary works regarding the Lower Bhavani project that government appointed Sir. Charles Innes in 1906 as the Special Revenue Officer instructing him to report on the various aspects of the scheme. After … Read more

Fold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Fold mountains are created through a process called orogeny. An orogenic event takes millions of years to create a fold mountain. Fold mountains are often associated with continental crust. … Read more

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

Wind is caused by the uneven heating of the atmosphere by the sun, variations in the earth’s surface, and rotation of the earth. Mountains, bodies of water, and vegetation all influence wind flow patterns. Wind turbines convert the energy in wind to electricity by rotating propeller-like blades around a rotor. The rotor turns the drive shaft, which … Read more

Earth magnetism is the property of earth behaving like a dynamo and showing magnetic property just like that of a magnetic bar. There are various theories behind this property. There is no valid reason for the cause of earth’s magnetism or why earth has giant magnetic field but there are some theory related to earth’s … Read more

The Himalayan has rendered unique climatic identity to Indian subcontinent. The role played by it is nothing less than a foster mother. It save India from the cold north east trade winds and provide tropical type of climate in the subtropical region. It is not a exaggeration to say that Indian economy is gamble of … Read more

The factors, which affect the distribution of temperature of ocean water are as follows: Latitude: The temperature of surface water decreases from the equator towards the poles because the amount of insolation decreases pole-ward.   Unequal distribution of land and water: The oceans in the northern hemisphere receive more heat due to their contact with … Read more

India is one of the major producers of fertilizers and meets 80 percent of urea requirements by domestic production.For feeding millions of mouths, high productivity is required which makes high level of plant nutrients essential. NBS scheme is being implemented from April 2010 by the Department of Fertilizers,Ministry of Chemicals & Fertilizers. Under NBS, a … Read more