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Management of Forest Resources:
Considering the ever growing demand of wood and realising the importance of conserving our forest resources, it has become necessary to find alternative fuels as well as raw materials to manufacture paper, sports goods, packing cases, furniture and beams used in buildings. Research is going on to discuss alternate sources; in some cases, plastics and composite materials have been developed, though they are not widely used as yet. The other way is to cultivate quick growing trees and herbages in large numbers in selected farms of degraded or wastelands. This will provide us fodder, fuelwood, timber, fruits and seeds. If deforestation has to be stopped. some necessary steps have to be taken:
i) adoption of a scientific method of harvesting forest stocks,
ii) developing a mechanism of monitoring forest growth rate and depletion,
Define Colorimetric Method for the Estimation of Phosphorous Estimation of phosphorous is based upon the principle of colorimetry. Many methods for quantitative analysis are ba
Explain the Selective Reabsorption Process 1. Specialized proteins called 'transporters' are located on the membranes of the various cells of the nephron. 2. These transport
Give the common name of the historic mineral that was the original source of radium and the first substance in which helium was discovered on earth: Pitchblende
Objectives After studying this unit, you should be able to: 1. Categorise different radiations into ionising and no ionising types, 2. Explain the effects of radiations
factors which decide the broad area of Scientific activity
Which of the following are demerits of state-charts?
what are the elements
Respiration: Food + oxygen -> carbon dioxide + water + energy Food is not only a source of energy, but also the nutrients used to build up the organisms' bodies. So we
The characteristic properties of an aquifer can be used to calculate groundwater velocities, v groundwater (L/T), according to: V groundwater = K H / η (dh/dl) where KH (L/
Explain the Microscopical examination of Urine By microscopical examination, the pus cells, RBC and cast cells are found if the infection is present. Microscopical examination
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