PEDOLOGY - study of different kinds of soils and their characteristics, SOIL - mixture of weathered rock fragments, mineral grains, organic debris and even the presence of moisture, PEDOGENESIS - process of the development of soil, REGOLITH - made of rock and fragments of minerals and the layer of unconsolidated rocky material covering bedrock, TOPSOIL - contains humus, SUBSOIL - made up mostly of pebbles, BEDROCK - formed when solid rocks breaks up , SOIL PROFILE - arrangement of soil horizons, O HORIZON - consists largely of organic matter, A HORIZON - consists of minerals and humus, E HORIZON - light- colored layer that contains little organic material, B HORIZON - zone of accumulation, C HORIZON - characterized by partially- altered parent material, SANDY - largest particle found in soil and easier to cultivate, SILTY - medium- sized particle found in soil and can hold more moisture, CLAY - smallest particle found in soil and can hold many nutrients , LOAMY - mix of sandy, silty, clay and a little humus, PEATY - dark brown soil and found mostly in swamp and muddy places, CHALKY - Not good for plants because it block nutrients, E and B - horizons make up the subsoil,
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SOIL RESORCES REVIEW
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Mhicaangelica
G11
Science
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