Answer:
railroads
-water
-roads
-streetcars
Explanation:
Chicago was known as one of the fastest growing cities in the world in the 19th century. It had a booming economy as a result of the ease of doing business and presence of basic amenities.
Chicago had a good supply of water, rail roads and a good road network for transportation of people and goods.
This made people from other states and countries immigrate to the region for better opportunities.
