Notes and Study material for Exams
The history of disasters in Karnataka reveals that a series of various types of disasters that have struck the State over the years with devastating effects. Years 2005 and 2006 have seen devastating floods in the Districts of Gulbarga, Belgaum, Bijapur, Bidar, Bagalkot, Raichur etc., as a result of outflow of excess water from … Read more
Disasters in the Uttarakhand Himalayan region and other Himalayan States Himalayas, as a region, have always been susceptible to disaster, due to the neo-tectonic mountain-building process, like Earthquakes, landslides, floods, etc. The spread of reckless developmental activities has transformed many natural disasters into man-made events. Such calamities play a grave negative socio-economic role on the … Read more
Natural Hazards And Natural Disasters A NATURAL HAZARD is a threat of a naturally occurring event will have a negative effect on humans. This negative effect is what we call a natural disaster. In other words when the hazardous threat actually happens and harms humans, we call the event a natural disaster. Natural Hazards (and … Read more
Water supply and sanitation Issues related to water supply in India Variability in water availability India faces large temporal variability in water availability, leading to, among other issues, disasters such as floods and droughts. Due to monsoon Climate in India, more than 70% of the annual Precipitation takes place in a limited period of about … Read more
Flood and Drought Occurrence Drought Drought is a complex, slow-onset phenomenon of ecological challenge that affects people more than any other natural hazards by causing serious economic, social and environmental losses in both developing and developed countries. The period of unusual dryness (i.e. drought) is a normal feature of the Climate and weather … 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
Flood and Drought Occurrence Drought Drought is a complex, slow-onset phenomenon of ecological challenge that affects people more than any other natural hazards by causing serious economic, social and environmental losses in both developing and developed countries. The period of unusual dryness (i.e. drought) is a normal feature of the Climate and weather system in … Read more
Flood and Drought Occurrence Drought Drought is a complex, slow-onset phenomenon of ecological challenge that affects people more than any other natural hazards by causing serious economic, social and environmental losses in both developing and developed countries. The period of unusual dryness (i.e. drought) is a normal feature of the Climate and weather … Read more
Natural Hazards and Natural Disasters A NATURAL HAZARD is a threat of a naturally occurring event will have a negative effect on humans. This negative effect is what we call a natural disaster. In other words when the hazardous threat actually happens and harms humans, we call the event a natural disaster. Natural … Read more
Different types of Irrigation and irrigation systems There are two main ways that farmers and ranchers use agricultural water to cultivate crops: Rain Fed Farming irrigation Rain-fed farming Irrigation Rain-fed farming is the natural application of water to the Soil through direct rainfall. Relying on rainfall is less likely to result in contamination … Read more