What was the reasoning for the attack of 9/11

Which statement does not accurately describe the columbian exchange and its consequences? a. wheat became a major crop in north america where it had never existed before. b. millions of africans were kidnapped into slavery to provide labor for profitable crops. c. cattle, sheep, chickens, and pigs were brought to europe for the first time. d. spanish conquistadors brought diseases with them and native peoples begin dying.

Over time, who did the nature of slavery change in america

Who was the leader of the democratic people’s republic at the beginning of the korean war?