Notes and Study material for Exams
Biotechnology in environmental clean up process Landfill Technologies Solid wastes account for an increasing proportion of the waste generated by urban societies. While a part of this volume consists of glass, plastics, and other non-biodegradable material, a considerable proportion of this is made of decomposable solid organic material, like food wastes from large … Read more
Erosion and runoff management in hilly, foot hills and valley lands; processes and factors affecting them Soil erosion due to water is a major concern in all the northern hilly states of India in general and Uttarakhand in particular. The peculiar terrain condition and high rainfall in the state pose a serious problem … Read more
Biodiversity: Soil reclamation can help to increase biodiversity by providing a more suitable habitat for plants and animals. Challenges of soil reclamation: Soil reclamation can be a complex and time-consuming process, and it can be expensive. There are a number of challenges that can be associated with soil reclamation, including: The type of damage that … Read more
Soil is defined as upper layer of the earth composed of loose surface material. It is a mixture of many substances including endless variety of Minerals, remnants of Plants and animals, water and air. It is the end product of continuing interaction between the parent material, local Climate, plant and animal organisms and elevation of … Read more
Indian Pre History practice question developed by pscnotes team [WATU 6], The Stone Age is the earliest period of human history, lasting from the first use of stone tools by hominins to the beginning of the Bronze Age. The Stone Age is traditionally divided into three periods: the Paleolithic, Mesolithic, and Neolithic. The Paleolithic Age … 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
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Social impacts of disasters Natural Disasters can cause social impacts that are similar in different types of communities such as the need for rebuilding, urgent access to Health care, simply accessing shelter during/after a storm, availability to food and water, turning towards the government for aid … Read more
Acid An acid is a substance which forms H+ ions as the only positive ion in aqueous solution. Examples:- Hydrochloric acid dissolved in water forms H+ and Cl– ions HCl —> H+ + Cl– Sulphuric acid dissolved in water forms H+ and SO42- ions H2SO4 —>2H+ + SO42- Nitric acid forms H+ and NO3– ions when dissolved in water HNO3 —> H+ + NO3– … Read more
Rajasthan Cropping Pattern Cropping pattern means the proportion of area under various crops at a point of time. The crop statistics published by the governments are used to denote the cropping patterns. Cropping pattern is, however, a dynamic concept as it changes over space and time.The cropping patterns of a region are closely influenced by … Read more
Horticulture in Rajasthan Horticulture is the science and art of producing, improving, Marketing, and using fruits, vegetables, flowers, and ornamental Plants. The importance of horticulture in improving the productivity of land, generating EMPLOYMENT, improving economic conditions of the farmers and entrepreneurs, enhancing exports and, above all, providing nutritional security to the people, is widely acknowledged. … Read more