What did congress use to investigate the government, armed forces, unions, education, science, newspapers, and other aspects of american life?

Brainliesttt asap!me : ) answer in your own words. what was the relationship between medieval theories about scientific reasoning and the kind of reasoning favored during the scientific revolution?

How did the growth of the middle class affect social reform during the industrial revolution?

After ww2, the soviets began setting up what type of governments in countries closest to them