Ключевые слова: abstract, africa, america, app, application, background, blue, cartoon, circle, concept, continent, design, earth, eco, ecology, element, environment, europe, explore, flat, geography, global, globe, graphic, green, icon, illustration, isolated, land, map, modern, nature, ocean, planet, protect, save, science, sea, sign, silhouette, simple, space, sphere, symbol, travel, usa, water, web, world,