symbol of the earthworm

earthworm, soil, composting, organic matter, soil health, garden worm, vermiculture, soil fertility, decomposer, soil ecosystem, worm castings, soil enrichment, humus, nutrient cycling, garden soil, soil improvement, soil organism, ecological role, worm farming, soil aeration, natural fertilizer, soil biology, soil life, organic gardening, earthworm habitat, soil structure, soil microbes, worm activity, soil regeneration, agricultural worm, worm reproduction, soil conservation, soil productivity, soil microfauna, worm species, garden ecosystem, earthworm behavior, soil environment, vermicompost, soil enhancement