Which statement best demonstrates the importance of natural resources to Minnesota’s industrialization?

1. Wood and coal fueled the mills that produced the state’s key products
2. Iron ore, grain, and lumber supplied the raw materials for key industries.
3. State businesses accumulated wealth from the sale of water and steam.
4. Local innovators were the first to harness wind and solar power for manufacturing.

2. Iron ore, grain, and lumber supplied the raw materials for key industries.