Ключевые слова: abstract, background, bio, care, clean, concept, conservation, design, earth, eco, ecological, ecology, element, energy, environment, environmental, friendly, garbage, global, globe, green, health, icon, illustration, isolated, leaf, line, natural, nature, organic, planets, plant, pollution, power, recycle, recycling, renewable, reuse, save, set, sign, solar, sustainability, sustainable, symbol, technology, tree,