Notes and Study material for Exams
Pressure and wind belts Atmospheric Pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column … Read more
Disaster Management History shows that India is exposed to national disasters. INFRASTRUCTURE; and other efforts to make the community more resilient to a catastrophic event. Preparedness Preparedness focuses on understanding how a disaster might impact the community and how education, outreach and training can build capacity to respond to and recover from a disaster. This … Read more
They are aggregates or physical mixture of one or more Minerals. Minerals on the other hand are made up of two or more Elements in a definite ratio. They have a definite chemical composition. Crust is made up of more than 2000 minerals, but out of these, 6 are the most abundant and … Read more
Dams History and extent of Dams in India India’s first dam is the Kallanai built on the Cauvery river by King Karikalan of the Chola dynasty around 2,000 years ago. The dam, which is still functional and irrigates millions of acres, spans 329 m in length and 20 m in width. However, it was only … Read more
Water Resources Rainfall: With an Average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. At one extreme are areas like Cherrapunji, in the northeast, which is drenched each year with 11,000 mm of rainfall, and at the other extreme are places like Jaisalmer, in the west, which receives … Read more
Notification on Environmental Impact Assessment (EIA) of developmental projects 1994 under the provisions of
Indian forest policy Historically our communities have always lived in harmony with nature, and participation of community in protection and management of common property Resources has been a tradition. The British introduced scientific management of forests through a centralised approach to forest management and development. The first formal government approach to Forestry can be traced … Read more
Iron-Ore: India possesses high quality iron-ore in abundance. The total reserves of iron-ore in the country are about 14.630 million tonnes of haematite and 10,619 million tonnes of magnetite. Haematite iron is mainly found in Chbattisgarh, Jharkhand, Odisha, Goa and Karnataka. The major deposit of magnetite iron is available at western coast of Karnataka. … Read more
Census Of India : Economic and Social features Rural and urban Population Altogether, 833.5 million persons live in rural area as per Census 2011, which was more than two-third of the total population, while 377.1 million persons live in urban areas. Urban proportion has gone up from 17.3 per cent in 1951 to 31.2 per … Read more
Physical Features Of India Millions of years ago, the Peninsular Plateau region (the oldest landmass) was a part of the Gondwana Land which covered India, Australia, South Africa, and South America. Over hundreds of years of shifting landmass and ocean currents broke this landmass into multiple pieces. .One such piece- the Indo-Australian plate started shifting … Read more