Ключевые слова: background, bright, bulb, concept, creative, day, decoration, development, earth, eco, ecology, electric, electricity, elements, energy, environment, environmental, forest, fresh, future, glass, global, green, hand, holding, idea, industry, innovation, inspiration, intelligence, leaf, life, light, lightbulb, natural, nature, network, people, planet, plant, power, renewable, save, seedling, spring, sunlight, sustainability, symbol, technology, tree,