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Forest cover:
An analysis of satellite imageries and air photos indicates that in 1982 about 1 I%of land area in India was thick forests and the remaining 3% degraded or thin forests. The world figures are much higher than this, and a higher figure is considered necessary from the point of view of climate as well as maintenance of the composition of the air we breathe. In India, most of the forests resources are used as fuel by people living in or around them. A good deal of forest trees arb felled for timber, and for packing fruit and for making paper. Besides, forests are being overgrazed by the increasing number of cattle. During the last 30 years, approximately 4.3 million hectares of forests were converted into agricultural fields or lost in construction of dams and roads. This is quite a good fraction of the 75 million hectares of total forest area. According to the latest information, the country is losing its forests at the rate of 0.16 million hectare every year. If the present rate of deforestation continues, a good deal of the country would become a mere grassland within a hundred years.
introduction to fire hazard
Precautions : The following must always be observed while dealing with lasers. 1) Never look along a laser beam or expose any part of your skin to it. Beware of reflected laser
Greenhouse effect: Scientists have reason to believe that air pollution. both due to carbon particles or soot and carbon dioxide would affect weather. A rise in surface temper
assignment on microscope
Enzyme stabilization Reducing the chances that an enzyme will inactivate (in vivo or in vitro) by changing the environmental conditions (such as pH, temperature, concentra
CONSTRUCTION STANDARDS SET BY BUREAU OF INDIAN STANDARDS : At the construction stage itself, the design of the laboratory buildings should be made in accordance with safety norms.
Explain the Secondary Active Transport In secondary active transport, there is no direct coupling of ATP; instead the electrochemical potential difference created by pumping io
Monitoring of resource utilisation Continuous recording of the changes in the quality and quantity of various.resources is as imyortant an element of resource planning as ev
What is amino acids metabolism ? Nitrogen enters the body through a variety of compounds present in the food, the most important being amino acids present in dietary proteins.
Define Proteins - Abnormal Constituents of Urine Proteins: Abnormal amounts of proteins are excreted in certain inflammatory diseases like glomerulonephritis (inflammation of t
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