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- Emigration and immigration 7
- Demography 4
- Politics and government 4
- Economics 3
- Aquifers 2
- International regimes 2
- Irrigation 2
- Palestinian Arabs 2
- Pipelines 2
- Wells 2
- Agriculture 1
- Armistices 1
- Contamination of environment 1
- Droughts 1
- Hydrology 1
- Labor 1
- Natural resources--Management 1
- Negev (Israel) 1
- Persian Gulf War, 1991 1
- Population 1