Notes and Study material for Exams
What is a Fuel Cell? A fuel cell is an electrochemical device that converts chemical energy from a fuel into electrical energy and heat. Fuel cells are similar to batteries in that they both convert chemical energy into electrical energy, but fuel cells do not run down and need to be recharged. Instead, they can … Read more
Apiculture Apiculture is the science of beekeeping. Humans have collected honey from wild bee hives for more than 8,000 years, as shown in Mesolithic rock paintings dating from 6000 B. C. E. By 2500 B. C. E. , Egyptians were keeping bees in artificial hives. Hives exploit the honeybees’ natural tendency to build nests in … Read more
India was the first nation to launched a family planning programme in 1952. Though the birth rate started decreasing, it was accompanied by a sharp decrease in death rate, leading to an overall increase in Population.The early concept of population policy covered both mortality and fertility and did not exclusively focus on fertility. There was … Read more
Agenda 21: A Blueprint for Sustainable Development in the 21st Century Introduction Agenda 21, a comprehensive blueprint for sustainable development, emerged from the 1992 United Nations Conference on Environment and Development (UNCED) in Rio de Janeiro, also known as the Earth Summit. This landmark document, adopted by 178 nations, laid out a framework for achieving … Read more
Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy content directly—rather than indirectly in fossil fuels, wind, or hydroelectric power—makes only a small contribution to humanity’s energy … Read more
The Art of Mixed Cropping: A Sustainable Path to Enhanced Productivity and Resilience The world’s population is growing, and with it, the demand for food. Simultaneously, the planet faces the pressing challenges of climate change, resource depletion, and biodiversity loss. These challenges necessitate a shift towards more sustainable and resilient agricultural practices. One promising approach … Read more
Eco friendly Technologies Rainwater harvesting technology Harvested rainwater can provide a source of alternative water to federal facilities. Alternative waters are sustainable sources of water, not supplied from fresh surface water or groundwater, that offset the demand for freshwater. Rainwater harvesting captures, diverts, and stores rainwater from rooftops for later use. Typical uses of rainwater … Read more
Here is a list of sub topics without any description for Planning in India: National Planning State Planning District Planning Town Planning Urban Planning Rural Planning Regional Planning Environmental Planning Economic Planning Social Planning Physical Planning Financial Planning Administrative Planning Legislative Planning Judicial Planning Educational Planning Health Planning Housing Planning Transportation Planning Communication Planning Energy … Read more
Swaminathan commission for agriculture Development The National Commission on Farmers (NCF) was constituted on November 18, 2004 under the chairmanship of Professor M.S. Swaminathan. The Terms of Reference reflected the priorities listed in the Common Minimum Programme. The NCF submitted four reports in December 2004, August 2005, December 2005 and April 2006 respectively. The fifth … Read more
The major causes of the Environmental Degradation are modern Urbanization, industrialization, over-Population Growth, deforestation etc. Environmental pollution refers to the degradation of quality and quantity of natural Resources. Mahatma Gandhi’s principle of “enoughness” in his saying “the earth provides enough to satisfy every persons need but not for every person’s greed” According to World Commission … Read more