Arvind Kumar
126 books
The world 'Zawar' is derived from jewerat, an Arabian term means Jewellery. It was an industrial city based in mining activities. Galena (lead and silver) and sphalerite (zinc and cadmium) are richly deposited here. The productive mines of the city have been going on for last 3000 years. But Zawar got an international recognition for inventing a smelting process which is know as "reverse distilliton process" for obtaining a volatile metals like zinc. ...
Contents: Preface. 1. Gandhism: an introduction. 2. Ecology: an overview. 3. Important environmental issues. 4. Ecological crisis and environmental movements. 5. Gandhi as a human ecologist. 6. Environmental philosophy of Gandhi. 7. Ecological dimensions of Gandhian thinking. 8. Gandhi and deep ecology. 9. Environmental crisis and relevance of Gandhi. 10. Environmentalism and development: a comparison between Gandhian and Nehruvian models. 11. Gandhian ...
This publication would serve as a valuable book for students, teachers, researchers, extension workers, zoologists, aquaculturists, technocrats, marine biologists as well as by those who are engaged in commercial exploration of aquaculture and fisheries.
The book has been written covering applied aspects of hydrobiology in order to cater to the needs of students and teacher in Indian universities and colleges. A textbook of this kind will be of immense use of all those who study or teach a special course in aquatic biology or as part of their curriculum. To start with the book in order to explain the relationship of the hydrosphere with other components of the ecosphere, a chapter on biosphere is incorporated as ...
Natural resources occur naturally within environments that exist relatively undistributed in natural form. It serves as raw materials to feed most industries. Natural economic products offer a vast, virtually untapped reservoir of chemical compounds with diverse potential uses and provide fundamental life support, essentially for the survival and for satisfying the wants of man-kind. Natural economic products provide wealth that is exported to other nations to ...
International development agencies believe that breeding new crops is important for ensuring food security by developing new varieties that are higher-yielding, resistant to pests and diseases, drought-resistant or regionally adapted to different environments and growing conditions. Plant breeding is the art and science of changing the traits of plants in order to produce desired characteristics while plant propagation is the process of creating new plants from a ...
The plankton community is a heterogenous group of tiny plants (phytoplankton) and animals (zooplankton) adapted into live in marine as well as freshwaters. Plankton is the productive base of both freshwater and marine ecosystems, providing food for larger animals and indirectly for humans, so plankton constitutes the basic food sources for any aquatic ecosystem, which supports fish and other aquatic animals. The phytoplankton may become increasingly important in ...
Environmental Science is the scientific study of the distribution, abundance of life and the interaction between organisms and their natural environment. It is a multidisciplinary science. Because of its focus on the higher levels of the organization of life on earth and on the interrelations between organisms and their environment, ecology draws on many other branches of science, especially geology and geography, meteorology, pedology, genetics, chemistry and ...
One of the greatest problems that the world is facing today, is that of environmental pollution, increasing with every passing year ad causing grave and irreparable damage to the earth. Environmental pollution consists of several basic types of pollution, namely, air, water, soil, noise, light, chemical, thermal, radioactive, visual and electronic pollution. Radioactive contamination is widely resulting from 20 century activities in atomic physics, such as ...
Soil pollution is one of the gravest problems, existing on earth. The conquest of utilizing land and soils resources and conducting experiments on it, for our benefit, is quite understandable, but it certainly should not be, at the cost of its health and wellness. Mankind has been trying out several different things and has made several arrangements in the soil, to make lie happy and comfortable. How often have we thought of contamination of soil? Soil pollution ...
An online newspaper also known as a web newspaper is a newspaper that exists on the World Wide Web or Internet either separately or as an online version of a printed periodical. Going online created more opportunities for newspapers such as competing with broadcast journalism in presenting breaking news in a more timely manner. The credibility and strong brand recognition of well established newspapers and the close relationships they have with advertisers are ...