Question

1. why was cheap steel important? a. it revolutionized communication. b. it allowed machines to be made with interchangeable parts. c. it allowed cities to become denser. d. it opened up a water route to the countrys interior. 3. what was the main purpose of angel island? a. to process immigrants on the west coast b. to help immigrants obtain jobs c. to detain immigrants d. to find homes for immigrants 4. how did most immigrants travel to the united states? a. by railroad b. by steamship c. by airplane d. by foot

Explanation:

1. Cheap steel enabled mass - production of interchangeable parts for machines, which was a key aspect of the Industrial Revolution.
2. Angel Island was an immigration processing center on the West Coast to process immigrants.
3. Most immigrants traveled to the United States by steamship as it was the main and practical mode of long - distance ocean travel at the time.

Answer:

1. A. It revolutionized communication.
2. A. to process immigrants on the west coast
3. B. by steamship