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Showing posts with the label UGC NET

CONSERVATION OF BIODIVERSITY

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  W e can say by the degree of dependency on environment that conservation of biodiversity is necessary.  As an area with higher species abundance has a more stable environment compared to an area with lower species abundance. As a human, we depend directly on various species of plants for our various needs. As well as, we also depend on various species of animals and microbes for different reasons. Biodiversity is being lost due to various reasons like Pollution, Over-grazing, Deforestation, Over-population, Hunting and poaching, climate change, etc. So, as we are more depended on this environment it's our duty to conserve our biodiversity. Laws Governing Biodiversity Conservation in India  (i) The Madras Wild Elephant Preservation Act, 1873.  (ii) All India Elephant Preservation Act, 1879.  (iii) The Indian Fisheries Act, 1897.  (iv) Wild Birds and Wild Animals Protection Act, 1912.  (v) The Indian Forest Act, 1927.  (vi) Bengal Rhinoceros Act, ...

ENDANGERED AND ENDEMIC SPECIES OF INDIA

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  T he Forest administration in India is more than 100 years old. Efforts to identify plant species as a part of wildlife and to recognize the importance for providing special protection to endangered plant species have so far been negligible. The extinction of certain attractive animals stimulated efforts to protect fauna, but no special heed was given to flora. The word ‘Wildlife’ had till recently been considered synonymous with animal life and consequently, conservations and naturalists have their attention only to conservation of animal species. It was only in the year 1968 at an International Conference (UNESCO 1968) that the problem of conservation of flora and fauna was appreciated and several recommendations were made urging the International Biological Programme (IBP), .the International Union for Conservation of Nature and Natural resources (IUCN) and various international and national organizations to initiate studies in to the problems involved, particularly the proble...

Hazardous Waste

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  Hazardous waste is any waste material with properties that make it dangerous or capable of having harmful effects on human health or the environment. Hazardous wastes are those that may contain harmful and toxic substances like heavy metals that are generated from Industries, hospitals and even some types of domestic waste. The concern towards hazardous waste management was stimulated by undesired massive health effects that were noticed in the neighborhood of Niagara Falls in New York State in the United States in the 1970s. These wastes could be corrosive, inflammable, explosive, or react when exposed to other materials. Some hazardous wastes are highly toxic to the environment including humans, animals, and plants. It comprises the waste generated during the manufacturing processes of the commercial products such as industries involved in petroleum refining, production of pharmaceuticals, petroleum, paint, aluminum, electronic products etc. Hazardous Waste managem...

Macronutrients &Micronutrients

Macronutrients, as the name suggests, are the nutrients required by the plants in large amounts. These include Carbon, Hydrogen, Oxygen , are obtained from air and water while the others are obtained from the soil. Macronutrients are the ones required in very small amount by the plants. These include Iron(Fe), Zinc(zn), etc. In addition to these, some elements like silicon, cobalt, selenium & sodium are present which are required by the higher plants.  The elements referred to as macronutrients and micronutrients can be further divided in following categories : • Elements as components of biomolecules & hence are structural elements of the cell. eg; carbon, nitrogen, oxygen etc. • Elements that are component of energy-related chemical compounds in plants like Phosphorus in ATP. • Elements that help inactivation or inhibition of enzymes. eg; Zinc which helps in the activation of alcohol dehydrogenase .  • Elements which alter the water potential  (osmotic potentia...