showing soil layers earth cross section schematic education poster sand gravel loam clay top with |
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navigate by keyword : soil natural ground vector earth rock education science underground illustration nature stone grass environment organic geological section cut bedrock dirt cross plant clay geology sand design topsoil structure formation humus clipart graphic minerals reservoir surface outside art scientific horizon rocky subsoil landscape crust outdoor plain layers geography profile mineral |
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Showing soil layers of earth. Cross section, schematic education poster. Soil, sand, gravel, loam, clay. Top layers with grass, tree and stones. |
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