<span>B. to quickly end the war without an invasion </span>
This is true.
The process described in the statement is known as urbanization. Urbanization discusses how individuals moved from the countryside to the cities for economic opportunities. These economic opportunities were made possible by the inventions developed during the Industrial Revolution. Inventions like interchangeable parts allowed for companies to mass produce goods for the American public.
This was known as the "iron curtain." It was a term used to describe the boundary in Europe, which formed at the end of WWII and lasted until the ending of the Cold War.
Leonardo da Vinci <em>was famous for his designs, art, cartography, geology, and studies. Leonardo's designs later helped us to invent things like the tank, parachute, helicopter and many other things. He was also a very talented artist. Most of his pictures and paintings are in art galleries and museums. One of his most known paintings is the Mona Lisa. He made many maps of many different places. He was also interested in geology. He studied many different things, including math, reading, and writing backwards. People think he wrote backwards because he didn't want to smear the ink, but others thought he didn't want people to steal his ideas. </em>