Ключевые слова: background, block, bright, bulb, business, care, change, climate, concept, conservation, cube, earth, eco, ecology, ecosystem, electric, electricity, energy, environment, environmental, fluorescent, future, garden, glass, global, globe, green, growth, innovation, lamp, landscape, language, led, life, light, lightbulb, message, natural, nature, planet, power, protection, safe, save, sustainable, technology, text, wood, word, world,