Ключевые слова: abstract, botanical, breathe, cartoon, colors, decoration, design, doodle, earth, eco, ecology, ecosystem, element, environmental, environmental conservation, fir, floral, foliage, global, globe, graphic, green, greeting, growth, icon, illustration, image, isolated, label, leaf, nature, no people, oak tree, outline, pictogram, pine, planet, pollution, root, shape, signs, silhouette, simple, social issues, symbol, tree branch, tree trunk, trunk, wood,