1. how did middle class people generally differ from the lower class2.
they lived in urban tenements,
they moved to the centers of the cities,
they had more time for leisure activities,
they modeled their lives on foreign royalty.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.