Ключевые слова: alternative, art, brain, bulb, business, care, choice, clean, collection, concept, conservation, creative, design, eco, ecologic, ecological, ecology, electric, electricity, energy, environment, friendly, fuel, future, global, green, icon, idea, innovation, isolated, lamp, leaf, life, light, lightbulb, mode, natural, nature, plant, pollution, power, protection, recycle, save, sign, solar, solution, symbol, technology, tree,