During the Gilded age, society experienced a period where there are so many social issues exist around them, but it was clouded/masked by silver lining (massive economic growth for society but it only enjoyed by a select view followed by massive exploitation toward a certain group)
During the reconstruction Our society realized this defect and started to made several changes
Answer:
They had a strong army that defended the borders and repal invaders.
Each degree in latitude would be 111 kilometers apart.
I think it is the first one (shoppers find sushi...). Cultural diffusion refers to the spread of different cultures around the world. Finding Asian food in America definitely shows an example of cultural spread.
In this passage, the type of warfare being described by the author is "chemical warfare".