short notes 1) soil
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Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water. Soil minerals are divided into three size classes — clay, silt, and sand (Figure 1); the percentages of particles in these size classes is called soil texture. The mineralogy of soils is diverse.
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Soil essentially is the loose material which forms the thin surface layer of Earth. Its formation is related to the parent Rock material ,relief ,climate and vegetation. It is a mixture of many different things including rock, minerals, water and air. Soil also has living things and dead things in it.
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