Ключевые слова: abstract, background, blue, business, care, clean, concept, conservation, continent, day, design, dripped, earth, eco, ecology, ecosystem, environment, environmental, europa, geography, global, globe, graphic, green, illustration, international, life, liquid, map, nature, ocean, planet, planet earth, pollution, poster, save, science, space, sphere, sustainable, symbol, threedimensional, travel, water,