Ключевые слова: background, background material, blue sky, business, business concept image, business image, business theme image, circumstance, cloud, earth, eco, ecology, ecology image, emptiness, environ, environment, geography, gleam, global, globalisation, globalism, globalization, globe, instructional aids, international, landscape, light, map, material, scenery, setting, shine, sky, stationery, surroundings, teaching material, terrain, training aid, training materials, view, world, world map,