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Irrigation
3
Water-power
3
Agriculture
2
Aquifers
2
Dams
2
Politics and government
2
Rivers
2
Technology
2
Watersheds
2
Climate
1
Contamination of environment
1
Demography
1
Economics
1
Evapotranspiration
1
Exports
1
Groundwater
1
Hydrology
1
International regimes
1
Palestinian Arabs
1
Pipelines
1
