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Ismatilla Urazbayev Ismatullaevich 12.04.2019-11:51:57 Elektron darslik → Soilscience-tuproqshunoslik
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Soils are the loose mineral or organic materials found on the earth`s surface, usually (or averagely) made up of about 25 % air, 25 % water, 45 % mineral and 5 % organic matter ( humus, tiny living organisms and sometimes plant residue).
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