Ключевые слова: abstract, bio, black, blue, bright, business, circle, climate, colours, concept, conceptual, conservation, dark, design, earth, eco, ecology, electricity, energy, environment, environmental, future, futuristic, global, green, growth, idea, industry, isolated, light, modern, natural, nature, new, power, ray, renewable, signs, sky, solar, sun, symbol, technology, water, wave, white, wind, word,