Answer:
Iron industry and forestry.
Step-by-step explanation:
The American industrialization began because of the abundance of raw materials, like iron, copper, coal, timber, and petroleum. The US was successful because they had raw materials, workers and businessmen to invest in industries. By mining, coal and iron ores supported the industries. Coal as fuel and iron for manufacturing goods. Forestry is a vital industry in the United States by producing lumber products.