FORM FOUR NECTA 2002 CHEMISTRY PAPER 2A FREE DOWNLOAD
Form four necta 2002 chemistry paper 2a pdf free download
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Five (5) factors influencing development of soil catena
Soil catena is the successive arrangement or sequence of arrangement of differing soil types along the slope from the hill top (summit) to the valley bottom. This sequence varies with relief and drainage though it may be derived from the same parent material e.g. the soils at the valley bottom are likely to be different from those of the hill top. The factors influencing the development of soil catena: Relief: which is the physical appearance (morphology) of the landscape affects or influences the development of soil catena in such a way that differences in relief affect the nature or soil type due to the fact that they influence erosion, deposition and human activities. Hill tops have lateritic capping with the resultant thin/ skeletal soils. The very steep slope/free face hardly has any soil i.e. has bare rock. The waxing slope/ convex slope is characterised by coarse, stony, creep soils due to erosion. The waning slope is fairly deep with clay loam soils....
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