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Topic
- Fishing 5
- Nasser, Lake (Egypt and Sudan) 4
- Aswan High Dam (Egypt) 3
- Water quality 3
- Bureaucracy 2
- Demography 2
- Reclamation of land 2
- Agriculture 1
- Algae 1
- Finance 1
- Health 1
- Irrigation 1
- Reservoirs 1
- Silt 1
- Sinai (Egypt) 1
- Urbanization 1
