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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.
Ultrasonic and sonic vibrations Cells of all types can be destructed by intense sonic and ultrasonic vibrations generated by magnetostrictive oscillations or peizo electric cry
Define the word solute A solution is a homogenous mixture of two or more different substances. For instance salt in water form a solution. This means that the dissolved subs
i want mechanism
ORGANIC COMPOUNDS - They are substances having both carbon and hydrogen which are commonly biological in origin. Organic compounds can be micromolecules or macromolecules
Q. Explain about Anabolism? Anabolism is a process of synthesis or making of larger or complex molecules from smaller molecules. The molecules are of different kinds like hormo
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The intermediates in the cycle give precursors for various biosynthetic pathways. An instance is as given below: - From citrate synthesis of fatty acids; - Amino acid synth
Process of Regeneration in Planarians Regeneration in planarians has been broadly studied and considerable information regarding this phenomenon is now available. Let us see w
how does amoeba reproduce (the whole process)
what is radula?
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