Writing Homework Help

I’m stuck on a History question and need an explanation.

• How did the move by the Portuguese royal family to Rio de Janeiro in 1808 diminish sentiments toward independence, and to what extent did the presence of the monarchy in Brazil lead to a break with Portugal in 1822?
• In what ways did coffee prolong slavery in Brazil until 1888?
• How did the rule of Pedro II reflect continuity in Brazil and how did his reign mark a time of significant change?
• How has the “special relationship” between Brazil and the United States from the early 1900s until the present manifested itself, and how has it changed over time?
• In what ways did Getúlio Vargas transform Brazil?
• What roles did the military played in Brazilian politics over the course of the twentieth century?