Ключевые слова: background, blue, business, care, concept, conceptual, conservation, continent, day, earth, eco, ecology, energy, environment, environmental, fingers, geography, global, globe, green, hand, help, hold, hope, human, isolated, leaf, life, map, nature, ocean, palm, peace, people, planet, pollution, preservation, protect, protection, recycle, save, science, space, sphere, symbol, technology, travel, water, white, world,