In what area does china still lag well behind the united states

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.

Which of the following was a reason why the loss of alsace and lorraine to germany was a major blow to france?

What was feudalism? (define the structure)