Ключевые слова: background, bulb, business, care, concept, conservation, creativity, crisis, earth, eco, ecological, ecology, electricity, energy, environment, equipment, future, glass, global, greenery, growth, hand, holding, icon, idea, industry, innovation, invention, light, light bulb, lightbulb, nature, planet, plant, power, recycle, renewable, renewal, reusable, saving, science, sign, social, solution, sustainability, symbol, technology, world,