Ключевые слова: background, blue, business, care, child, children, clean, concept, conceptual, conservation, earth, eco, ecological, ecology, ecosystem, energy, environment, environmental, friendly, future, girl, global, globe, green, hand, hold, isolated, life, natural, nature, planet, plant, pollution, power, protect, protection, recycle, recycling, save, sign, symbol, technology, tree, warming, world, young,