What was significant about the 1990 elections in nicaragua?

What did the brown board of education decision do? o a it established 'separate but equal" segregation o b. it supported cultural segregation in the classroom o c. it banned racial discrimination everywhere. o d. it ruled that segregation in schools is unconstitutional

1. what was the purpose of the communist international organization?

What from the columbian exchange had perhaps the biggest impact on the world?