At the time, the number of soldiers killed during the civil war was less than the number killed in the revolutionary war. was the same as the number killed during the war of 1812. was the same as the number killed in the spanish-american war. was more than the number killed in all previous us wars combined.

At the time, the number of soldiers killed during the Civil War was more than the number killed in all previous us wars combined.

Explanation:

The Civil War caused 1,030,000 casualties, which was approximately 3% of American population of that time, including 620,000 dead soldiers, of which two thirds died of diseases. The Civil War cost more deaths than all the previous American wars combined. Based on the 1860 census figures, 8% of all white men between 13 and 43 years old died in the war. In the North this figure is 6% of deaths among men, while in the South the figures indicate the death of 18% of men.

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.