What are the benefits and problems of the Aswan Fight Dam?

Answer 1

The Aswan High Dam has

+ provided water for irrigation
+ provided electricity
+ controlled flooding

- prevented annual flooding which supplied silt to farmland in the delta area, causing heavier fertilizer use
- washed salts from newly-irrigated land into the Nile
- flooded some historically and archaeologically important sites
- caused changes in the ecosystem balance involving snails and fish that are part of the life cycle of the parasite that causes schistosomiasis