Ключевые слова: bulb, clay, creativity, development, dirt, earth, eco, eco friendly, ecology, economy, efficiency, electricity, energy, environmental, environmental conservation, global, glowing, grass, green, grow, growth, illustration, innovation, inspiration, invention, lamp, leaf, life, light, light bulb, nature, planet, pollution, power, protection, recycling, renewable, renewable energy, resource, saving, seed, seedling, small, social issues, solution, sustainable, symbol, technology, vision, wealth,