Ключевые слова: astronomy, brotherhood, change, concept, conceptual, conservation, countries, cultural, day, diversity, earth, ecologist, ecology, ecosystem, environment, environmental, ethnic, ethnicity, fraternity, geographical, geography, gesture, globe, hands, horizontal, international, isolated, love, map, multicultural, multiculturalism, nations, nature, peace, people, planet, power, powerful, protect, protection, respect, saving, sign, sodality, solidarity, solidary, union, white, world,