Based on the clue 'brazilians have added words from african slaves t...', what is the answer?

Based on the clue 'brazil was once the top producer of this sweet stu...', what is the answer? Which performer is associated with 'brazil'? Based on the clue 'brazilian airline whose name is an abbreviation of...', what is the answer? Based on the clue 'brazilians call this holiday eve reveillon thats w...', what is the answer? Based on the clue 'brazils legislature includes the chamber of these ...', what is the answer? Based on the clue 'brazils version of this long running pbs kids show...', what is the answer? What is referred to by 'brazzaville kinshasa'? What is referred to by 'breach of faith'?