Answer:
Argentina, the Comoros, Haiti, the Dominican Republic, Rwanda and Uruguay rank as the world’s least diverse countries.
Explanation:
Argentina may be a surprise, what with all those Germans and Italians pouring into the country after one world war or the other. But Spanish is nearly universally spoken in Argentina, 97% of the country is white and more than nine-in-ten Argentines are at least nominally Roman Catholic, according to the CIA’s World Factbook.
