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textoFiltroFichatipo de documento Ciències de la Terra i Medi ambient - Experiment/Pràctica
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Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?How deep do you need to go to find the place where organic material starts to turn into soil?
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Fecha publicación: 12.5.2016
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