The Mississippi Delta area is not heavily forest now because it was cleared for agriculture (cotton).
Ghettos are often know as being more impoverished/poor than other areas of the city. Ghetto is also more than likely toward darker races/black. This term was also used towards African Americans during that time.
The Fertile Crescent is located in Egypt and ranges from the Nile to the Tigris and Euphrates rivers. Mesopotamia is located along the Tigris and Euphrates rivers.
The correct answer is - Nationalism.
Both Italy and Germany were countries were the people lived in terrible conditions. The moral was low. The unity was almost non-existent. The economies were in bad conditions.
Hitler and Mussolini used all of this things, and presented their ideology to the people as a unifying one. They promoted socialism, but also nationalism, and used the nationalism to make the people feel like a part of something big and united, feel special, distinct, and worthy of greater things.
Unfortunately, they also promoted hatred towards other nations, and also inferiority of the other ethnic group.