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 mineral drawing scientific art picture outside landscape layers sciences outdoor diagram plain geography profile artistic material layer pattern land |
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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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