The Columbian Exchange resulted in each of the following EXCEPT

population booms in parts of Europe, Asia, and Africa due to the introduction of new staple subsistence crops, such as maize, from the Americas.

economic instability in European countries, such as Spain, due to rapid inflation caused by increased resource acquisition and trade.

population booms among American Indian groups due to the introduction of new staple subsistence crops, such as wheat, from Europe.

the expansion of slavery in the Americas through European trade with West African kingdoms.

I'm not going to write an entire essay for you but i can summarize the spanish american war for youthe spanish american war starter in 1898 between the u.s. and spain after the u.s.s maine was sunk in havana harbor. we wanted their colonies and we had steel production so we had a steel fleet and literally destroyed the entire spanish armada in the philippines with only one loss. which was a person being crushed on a ship by a box. remember because of the bessemer process we had more steel and steel is stronger than iron. steel guns can shoot 2 miles while iron guns can shoot 1 mile so we just stayed out of range and destroyed them all. we beat the spanish in one year and we got puerto rico, guam, and the philippines as territories and cuba was left as a free country. also we treated everyone worse than the spanish and stole all the territories resources for ourselves.