Ключевые слова: abstract, alternative, auto, background, banner, bio, business, car, cardboard, clean, concept, conservation, copy space, cycle, drive, eco, ecology, economy, energy, environment, environmental, field, fuel, gas, gasoline, global, grass, green, hands, hybrid, icon, innovation, meadow, modern, natural, nature, organic, paper, plant, pollution, power, protection, recycle, sign, symbol, technology, transport, tree, vehicle, white,