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Fuel Requirements - Deforestation
The increasing demand for fuel wood is one of the major factors leading to the degradation of the forest ecosystem. Fuel wood is of such major importance as a forest produce that about one-half of all the wood cut in the world is used for lighting, cooking or heating purposes. Even today more than one third of humanity still relies on wood for fuel. In the recent years, the oil crisis and the sharp increase in the prices of oil have further escalated the demand for wood as fuel.
The fuel wood consumption has gone up from 86.3 million tonnes in 1953 to about 135 million tonnes in 1980, and it is believed that by the year 2000 A.D., the demand for firewood would be in the range of 300 to 330 million tonnes. The increasing demand for firewood with every passing year means greater pressures on the forests, which also means increased intensity of deforestation.
CHITIN It is polymer of N-acetyl-D-glucosamine. It is a structural homopolysaccharide found in the fungal walls as fungus cellulose and as chitin in the exoskeleton of
Explain the life cycle of Water? The water cycle , or hydrologic cycle, is one of the most important processes to living organisms on Earth. Consider the following facts:
The environmental pollution has become a biggest threat to humanity. To over-come this problem a suitable preventive legislation is need of hour. The problems of acid rain ,ozone
Gluconeogenesis that is also called as GNG is a metabolic pathway which results in the generation of glucose from non-carbohydrate carbon substrates such as pyruvate, glycerol, lac
Chromosomes and Their Organization During division phase , the duplicated chromatin fibres become extremely shortened (= condensed), by coiling and folding ,into short
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Q. Is monoculture a system that contributes to great biological diversity of an ecosystem? The Monoculture implies that in a large area a single crop (only one species of plant
Phylum Labyrinthomorpha - Protozoan Trophic stage, ectoplasmic network with spindle shaped or spherical nonamoeboid cells. Small group living on algae; mostly marine or estuar
1. Transcriptional analyses of eukaryotic cells reveal widespread production of RNA. Using specific examples describe how: a) microRNAs are able to influence gene expression.
Q. Explain about Dry heat sterilization? It is used to sterilize glass ware, forceps, scissors, scalpels, all glass syringes, swabs, some pharmaceuticals products such as liqui
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