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- Deserts 9
- Agriculture 6
- Technology 4
- Irrigation 3
- Water quality 3
- Groundwater 2
- Hydrology 2
- Politics and government 2
- Saline water conversion 2
- Saline waters 2
- Afforestation 1
- Algae 1
- Aquifers 1
- Arabah Valley (Israel and Jordan) 1
- Arid regions 1
- Armed Forces 1
- Brackish waters 1
- Building 1
- Canals 1
- Climate 1
