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CHEMICAL PROPERTIES OF SOIL
Soil is a highly dynamic system which supports complex chemical reactions. In this heterogeneous systems, the soil solution acts as the medium for complex chemical reactionr. Soil colloidal components (clay and humus) bind the exchange cations on the surfaces. Cation exchange is one of the most important soil reactions. Colloidal soil particles such as humus and clay usually bear electronegative charge. The charge may be the result of the adsorption of an excess of anions or the result of an imbalance in the atomic charges in the crystal lattice of clay rnicelle. To balance the negative charges, the particles tend to adsorb cations on their surface (see Figure shown below). The balancing ions are called exchangeable cations and are in kinetic equilibrium with the soil solution.
Archaeological Records of Human Campsites Archaeological records of human campsites indicate that early humans started out as small bands of hunters who supplemented kills wit
Peculiarities of Mitosis - Cleavage From the following you will learn that the mitosis in the phase of cleavage has some striking peculiarities: a) Synchronization of cell
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4 Put the following events in the most probable order. (a) Predatory birds poisoned by insecticide. (b) Trees sprayed with insecticide. (c) Earthworms eat leaves which f
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organisms and their excretory organelles
Determine the type of bandage The most common type of bandage is the gauze bandage, a simple woven strip of material which comes in different widths and lengths.
how they reproduce?
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