What is soil ¿?????¿
Answers
Explanation:
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
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Answєr :
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. For example, a clay mineral called smectite can shrink and swell so much upon wetting and drying that it can knock over buildings. The most common mineral in soils is quartz; it makes beautiful crystals but it is not very reactive. Soil organic matter is plant, animal, and microbial residues in various states of decomposition; it is a critical ingredient — in fact the percentage of soil organic matter in a soil is among the best indicators of agricultural soil quality . Soil colors range from the common browns, yellows, reds, grays, whites, and blacks to rare soil colors such as greens and blues.
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