D as some countries don’t have certain things as other countries have more than they need so they trade the item for another item.
The years of industrial expansions after the civil war Brought significant changes to American society. The country became increasingly urban, and cities grew not only in term of population but also in size,with skyscrapers pushing cities upward and transportation extending them outward. Part of urban population growth was fueled by an unprecedented mass immigration to the United States that continued unabated into the first two decades of the twentieth century. The promise that America held for these new immigrants contrasted sharply with the rise of legalized segregation of African‐Americans in the South after Reconstruction. Meanwhile, ongoing industrialization and urbanization left their mark on how people spent their daily lives and used their leisure time.
#2 I think if not than #3
Answer:The Revolution also unleashed powerful political, social, and economic forces that would transform the post-Revolution politics and society, including increased participation in politics and governance, the legal institutionalization of religious toleration, and the growth and diffusion of the population.
Due to the different wavelengths of the different colors, light breaks into different patterns. :) Hope this helps you!