Why does the united states need to find alternative power sources

What impact did new technologies in the assembly and manufacturing have on the auto industry in the 1920s

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.

Explain the first meeting between robespierre and louis xvi after louis is crowned king? fast