Explain the advantages and disadvantages of large dams and reservoirs
What will be an ideal response
Advantages:
-provides irrigation water
-provides drinking water
-useful for fishing and recreation
-produces cheap electricity
-reduces downstream flooding
Disadvantages
-flood land under the reservoir displaces people and destroys croplands and forests
-large amounts of water are lost from the surface of the reservoir through evaporation
-deprives downstream areas of nutrient-rich silt
-risk of failure and devastating downstream floods
-disrupts migration and spawning of fish
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