They were fed mulberry leaves
The answer is rocky surfaces
Answer:
Thanks to electrification, urban residents had access to new forms of entertainiment to which they did not have access before.
Explanation:
For example, they could now listen to the radio in their leisure time, which was a popular activity to do in family. They could also move around more quickly, in electric trains and trams. Finally, they could enjoy more leisure time because electrififcation made their lives and works easier and more productive.
Rockoff estimates the total cost of World War I to the United States at approximately $32 billion, or 52 percent of gross national product at the time. He breaks down the financing of the U.S. war effort as follows: 22 percent in taxes, 58 percent through borrowings from the public, and 20 percent in money creation.