APSC Prelims and Mains Notes, APSC Test Series
Rain Water Harvesting v Water forms the lifeline of any society. Water is essential for the environment, food security and sustainable development. v All the known civilizations have flourished with water source as the base and it is true in the present context too. v Availability of drinking water and provision of sanitation … 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, … Read more
Management of land and water resources LAND RESOURCE MANAGEMENT IN INDIA Land and water have been the basic elements of life support system on our planet since the dawn of civilization. All great civilizations, flourished where these resources were available in plenty and they declined or perished with the depletion of these resources. … Read more
The Indus Water Treaty (IWT) is a water-distribution treaty between India and Pakistan signed on September 19, 1960. The treaty was signed by the then Prime Minister Jawaharlal Nehru and Pakistan’s President Ayub Khan. It was brokered by the World Bank (International Bank for Reconstruction and Development). According to treaty, all the water of eastern rivers( Sutlej, Beas, Ravi) … Read more
The Inter-State River Water Disputes are one of the most contiguous issues in the Indian federalism today. In the extreme cases, it may hamper the relationship between the different states. The recent cases of the Cauvery Water Dispute and the Satluj Yamuna Link Canal case are examples. Water is a State subject as per … Read more
Scarcity of water Water scarcity is possibly to pose the greatest challenge on account of its increased demand coupled with shrinking supplies due to over utilisation and pollution. Water is a cyclic resource with abundant supplies on the globe. Approximately, 71 per cent of the earth’s surface is covered with it but fresh … Read more
The survival of plants is dependent on a number of factors which include water, minerals, gases, and nutrients they receive. The movement of gas, water, and nutrients in plants are carried out in components. They take in carbon dioxide from the air through the stomata present in their leaves and they absorb compounds of nitrogen, … Read more
The cost of recharge to sub-surface reservoir is lower than surface reservoirs. The aquifer serves as a distribution system also. No land is wasted for storage purpose and no population displacement is involved. Ground water is not directly exposed to evaporation and pollution. Storing water under ground is environment friendly. It increases the productivity … Read more
Secondary treatment is a biological treatment process used to stabilize the dissolved solids. Microorganisms (e.g., bacteria) feed on the organic solids (food) in the wastewater and convert the organics into a cellular or biological mass that can later be removed. These biological processes are aerobic processes. Oxygen must be provided for these aerobic organisms to … Read more
Chlorine is a powerful chemical that has been in use for many years to treat water for home consumption. Chlorine is an effective water purification method that kills germs, parasites and other disease-causing organisms found in ground or tap water. Water can be purified using chlorine tablets or liquid chlorine. As an off-the-shelf water purification … Read more