It's sociology.
Sociology is the study of social problems.
I believe the answer is: <span>urged to leave and found it difficult to make a living.
Okies refers to the group of people that mostly consist of poor immigrants,that have to rely on farm-related jobs as their primary income.
Dust bowls destroyed many of the agricultural crops in that season and make okies' live became very difficult.</span>
When you here that term is usually refers WWII and the Nazi's. Concentration camps were basically huge "prisons" or barracks where the Nazi regime placed people deemed undesirable to the Aryan race. It was were a place where these people were labeled by numbers and all there possessions were taken away. There was very little food, and poor sanitary conditions. 11 million people were killed in these camps. 6 million Jews were the greatest number killed. The other 5 million consisted of other types of people that the Nazi's considered undesirable- such as Roma Gypsies, persons with disabilities, homosexuals.
Answer:
North America has the blessing of both massive tracts of tillable land and the energy and natural resources to be relatively independent. These factors allow the continent to export the excess production to the rest of the world. There has not been a major war fought on the continent since 1865
