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Topic
- Agriculture 5
- Technology 5
- Irrigation 4
- Negev (Israel) 4
- Groundwater 3
- Rain and rainfall 3
- Watersheds 3
- Aquifers 2
- Arid regions 2
- Deserts 2
- Hydrology 2
- Politics and government 2
- Precipitation (Meteorology) 2
- Water quality 2
- Water--Storage 2
- Water-supply 2
- Arabah Valley (Israel and Jordan) 1
- Bibliography 1
- Bureaucracy 1
- Climate 1
