What lessons did the progressive era offer about social problems in the united states today?

The progressive era was a period in the history of the United States. It was a period of social activism and political reform. It started in the 1890s and ended in the 1920s. The people involved in this movement focused on family and education, prohibition and women's rights. The movement also focused on getting rid of corruption. The results of the progressive era were the eighteenth and nineteenth amendments and women were given the right to vote. The progressive era also banned the manufacture and sale of alcohol to people 

which of the following is a subsurface event that takes place during the rock cycle?

  cementing  erosion  melting  weathering