I was the purchase of what is now southern Arizona and southern New Mexico, from Mexico. What am I?

Which answer best explains the overall impact of the chicken on native american populations in the new world? negative; it destroyed much needed grain crops neutral; it was not well adopted by native americans insignificant; other animals were more quickly accepted positive; it brought a good source of protein to the native american diet

Explaining how did leopold's aggression promote western imperialism in africa?

Which of these belongs to the united states after the spanish american war ?