Which of the following item was invented in the 1800's? The iron cook stove
The Toaster
Air conditioning

Do humans change their physical environment to adapt or do humans adapt themselves to their physical environment?

Which of the following american companies had a monopoly in the late 1800s?

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy