The Progressives were people advocating social reform. They believed in science and technology, and were very political people.
AnsweAgriculture allowed farmers to use genetics to select the best crops for their areas. Agriculture also enabled the population of Pre-Columbian America to increase. People could now live in permanent villages. In time, these villages created their own systems of governance.Explanation:
Correct Answer: B. Slaves
B. geographical boundaries created in earlier historical periods