Because of the various technological and industrial advancement, there was huge growth of cities in America.
Explanation:
Many new possibilities if employment were opened in America which allowed many immigrants to occupy in order to have a better livelihood. Transatlantic railroad construction companies observed Asians to be the cheapest form of labor and many Chinese were employed in the construction of it. Urbanization in America led to the growth of busy commercial cities like Boston, New York and Philadelphia.
Textile mills and many sweat shops attracted the women workers too. Although, cities sprang up to be developed during the nineteenth century, it also paved way for many reform movements like labor union movements, women suffrage movements.
Kennedy inherited the problems of Southeast Asia and intended to get the United States out of Vietnam before it escalated further. His death changed that. The result is Southeast Asia is still in conflict and what is happening on the continent today reflects the problems with China, Korea, and Japan.
i got this off a online document, i hoped this helps
A. they became more expensive because they used technology
Mexico City fell to the United States Forces under the command of General Winfield Scott.
The Maginot Line was the primary defense for the French during World War 2.