The main responsibility of the United States State department is to handle foreign affairs.
Abolitionists ended slavery
It led to Minneapolis and Cleveland becoming industrial centers.
The desert has a major impact on the world climate and vegetation and especially the climate and vegetation of the area which is covered with desert (for example the Sahara in Africa or desert Gobi in Asia).
Inflation is important because it makes the money/currency that is being printed out less valuable in a country
