How has the three branches of the federal government defined the scope of the Constitution?

How did the crop lien system trap some farmers in a cycle of debt

American troops were worried about cantracting in cuba a. yellow fever b. hepatitis c. polio

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.