Plate tectonics

  The uppermost outer solid and rigid layer of the earth is called crust. Its thickness varies considerably. It is as little as 5 km thick beneath the oceans at some places but under some mountain ranges it extends upto a depth of 700km. Below the crust denser rocks are found, known as mantle crust. … Read more

Synopsis of NCERTS

  Introduction Indian national movement: One of the biggest. Inspired many others. Gandhian Political Strategy very important. Elements of Gandhian Strategy can be seen in the Solidarity Movement in Poland by Lech Walesa WHY IS THE INDIAN NATIONAL MOVEMENT UNIQUE In the Indian national movement, the Gramscian perspective of war of position was successfully practiced. … Read more

Wetland Conservation Programme

    Wetlands are lands transitional between terrestrial and aquatic system where the water table is usually near the water surface and land is covered by shallow water. Essential as: control floods, water treatment, recharging of water sources, reduce sediments, check soil erosion, bulwark against encroachment by the sea, winter resort for birds and important … Read more

Population growth, distribution and density

  India is the second most populous country in the world next only to China. On March 1, 2011 the total population of India was at 1.247 billion. This accounted for 17.5% of the world’s total population. In other words, about every sixth person in the world there is an Indian. China, the most populous country … Read more

FOREST ECOSYSTEM

    Forest ecosystem includes a complex assemblage of different kinds of biotic communities. Optimum conditions such as temperature and ground moisture are responsible for the establishment of forest communities. Forests may be evergreen or deciduous which are distinguished on the basis of leaf into broad-leafed or needle leafed coniferous forests in the case of … Read more

Caste Class & Occupation

Caste ,Class & Occupation The caste system is a classification of people into four hierarchically ranked castes called varnas. They are classified according to occupation and determine access to wealth, power, and privilege. The Brahmans, usually priests and scholars, are at the top. Next are the Kshatriyas, or political rulers and soldiers. They are followed … Read more

Role and Functions of Reserve Bank of India

Role of RBI Pre-reform Post-reform Developmental Role: the developmental role has increased in view of the changing structure of the economy with a focus on SMEs and financial inclusion Priority Sector Lending: Introduced from 1974 with public sector banks. Extended to all commercial banks by 1992 In the revised guidelines for PSL the thrust is … Read more

Earthquakes

  Earthquakes occur when energy stored in elastically strained rocks is suddenly released. This release of energy causes intense ground shaking in the area near the source of the earthquake and sends waves of elastic energy, called seismic waves, throughout the Earth. Earthquakes can be generated by bomb blasts, volcanic eruptions, sudden volume changes in … Read more

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