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

SECOND GREEN REVOLUTION

SECOND GREEN REVOLUTION The main objectives of the second Green Revolution are: (i) To raise agricultural productivity to promote food security (ii) More emphasis on bio-technology (iii) To promote sustainable agriculture (iv) To become self-sufficient in staple food, pulses, oil seeds, and industrial raw material (v) To increase the per capita income of the farmers … Read more

Green Revolution in India

Green Revolution in India A term coined to describe the emergence and diffusion of new seeds of cereals. Norman-e-Borlaug is the Father of Green Revolution in the world, while Dr. M.S. Swami Nathan is known as the Father of Green Revolution in India. The new cereals were the product of research work and concentrated plant … Read more

 Climatic changes

    It is the long term change in the statistical distribution of weather patterns over periods of time Though it has been happening naturally for millions of years, in recent years it has accelerated due to anthropogenic causes and has been causing global warming. UNFCCC defines climate change as – “a change of climate … Read more

Wegner’s Continental Drift Theory

    Alfred Wegner was a German Meteorologist in the early 1900s who studied ancient climates. Like most people, the jigsaw puzzle appearance of the Atlantic continental margins caught his attention. He put together the evidence of ancient glaciations and the distribution of fossil to formulate a theory that the continents have moved over the … Read more

agriculture

the syllabus states that -mazor crops,cropping patterns in various parts of the country,different types of irrigation system,storage,transport and marketing of agricultural product,and issues related to constraints,e-tec hnology in the aid of farmers….the link for yojna January  2011 for agriculture is for dowloading dere would be a link as  download pdf also ncert geography land use … Read more