Answer:
Coal
Explanation:
The main resource used to produce energy during the Industrial Revolution was coal. The early uses of wind, water and wood for energy were replaced by coal, which could produce high levels of heat, power machines that were much more efficient and replace slow, manual labor.
The Department of War was one of the first executive branch departments in the u.s. government.
Robert E. Lee was the leader of the rebellions
Answer:
basically the graph is explaining how much money countries made by exporting items.
Explanation:
the American graph of exports had far less money from exports compared to Cuba
I believe the answer is d