Notes and Study material for Exams
Rural-Urban Composition: For the first time since Independence, the absolute increase in Population is more in urban areas that in rural areas Rural Population in India: 68.84% Urban Population in India: 31.16% Level of Urbanization increased from 27.81% in 2001 Census to 31.16% in 2011 Census The proportion of rural population declined from 72.19% … Read more
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
Natural Hazards of India Disaster A disaster is a sudden, calamitous event that seriously disrupts the functioning of a community or Society and causes human, material and economic or environmental losses that exceed the community’s capacity to cope using its own Resources. Vulnerability + Hazard =Disaster Vulnerability- it is defined as the diminished capacity of … Read more
In India, at present forest areas cover about 76.5 million hectares of land, which is about 23 per cent of the total geographical area. It ranges from about 87 per cent in Andaman & Nicobar Islands to only about 4 percent in Haryana making to range difference of 83 percent. According to our National … Read more
According to FAO Food Security is “a situation in which all people at all times have access to adequate quantities of safe and nutritious food to lead a healthy and active life”. This definition requires three basic conditions to be met: 1) adequacy, i.e. supplies from domestic production, stocks and imports are sufficient to meet the … Read more
The Green Revolution was initiated in the 1960’s to address the issue of Malnutrition in the developing world. The technology of the Green Revolution involved bio-engineered seeds that worked in Conjunction with chemical Fertilizers and heavy Irrigation to increase crop yields. Green Revolution was largely confined in wheat crop and in northern India such … Read more
The word “monsoon” comes from the Arabic word mausim, meaning season.Monsoons refer to a system of winds in the tropical regions under which the direction of winds is reversed completely between the summer and the winter seasons. Under this system, the winds blow from land to sea in winter and from sea to land … Read more
Drainage: Flow of water through well-defined channels. Network of such channels is called a Drainage System . Drainage basin: An area drained by a river and its tributaries. Watershed: Boundary line separating one drainage basin from other. River basins are larger watersheds. Drainage pattern of an area depends on the geological time period, nature … Read more
The Greenhouse Effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s Atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. It is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a … Read more
Climatic Regions of India : Koeppen’s Classification Climate Type Climatic Region Annual Rainfall in the Region Amw (Monsoon type with shorter dry winter season) Western coastal region, south of Mumbai over 300 cm As (Monsoon type with dry season in high sun period) Coromandel coast = Coastal Tamil Nadu and adjoining areas of Andhra Pradesh … Read more