Ключевые слова: alphabet, background, bio, biodegradable, clean, concept, conservation, container, cycle, decor, decoration, design, earth, eco, ecology, efficient, electricity, element, energy, environment, friendly, garbage, global, green, letter, life, natural, nature, organic, plastic, pollution, product, recycle, recycling, reduce, renewable, resource, reusable, reuse, save, saving, sustainability, sustainable, symbol, tile, trash, waste, wood, word, world,