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Subject
- Climate[remove]9
- Climatology7
- Administrative and political divisions1
- Campaigns1
- Cities and towns1
- Classification1
- Economic conditions1
- Economic history1
- Evaporation (Meteorology)1
- Geology1
- Groundwater1
- Industries1
- Precipitation (Meteorology)1
- Roads1
- Runoff1
- Soil degradation1
- Soils1
- Solar radiation1
- World War, 1939-19451
