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FORMATION OF SOIL
Evolution of Earth took place five to eight billion years ago when it was a red hot magma (molten rock). It took millions of years for the magma to cool down and during this process it got transformed in many ways. In the initial stages there was no water on Earth's surface, it rained for some million years and filled up valley like places to make oceans and sea s. In these early stages of evolution, Earth conditions were quite drastic in which formation of many silicates, like orthoclase, took place.
These in contact with water slowly hydrolysed to give open structured silicates called clay minerals. This transformation took another million years. Sometimes in between, life came into existence in water and evolved. This evolution was accompanied by the evolution of soil organisms which helped in the formation of soil
Properties Gum Arabic is unique between the natural hydrocolloids because of its extremely high solubility in water and can yield solutions of up to 55% concentrations. Solutio
Q. Explain Coronary Anatomy? The main coronary trunks can be considered to lie in one of two orthogonal planes. The anterior descending and the posterior descending coronary ar
Water Water usually forms about 50% to90% part of living protoplasm. Life upon earth originated in the ocean and the conditions of that aqueous primeval environment have been r
Energy Loss - Energy Flow Let us now take the second point that is the loss of some energy at each trophic level. You might recall that the second law of thermodynamics states
Low levels of dissolved salts characterise the freshwater biomes. The salt content of fresh water is about 0.005 percent. The freshwater biomes consist of inland bodies of standing
NE R VE IMPULSE (IT'S GENERATION) - It is an electro chemical phenomenon manifested through ionic movement across cell membrane. It was discovered by A. L. Hodykin & A
Determine Energy requirements of school children and adolescents? Table depicts the energy requirements of school children and adolescents, as recommended by ICMR (1990).
Feeding mechanism in holozoic animal
Enrichment of soil Indirect provision of minerals to grazing livestock includes mineral fertilization of pasture and altering soil pH, however this may not be always feasible
Silver point: - Uses of silver point: ease of handing and placement, ductility, radiopacity,and have some antibacterial activity. - Lack of acceptable 3D seal of the ca
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