What are the positive and negative effects of dams?

Answer

Dams are structures built by human beings in rivers. They are created through the construction of reservoirs. The positives of dams include; tourism attraction, generation of fishing activities, reduction of flood occurrences, continuous supply of water and generation of hydro electric power. The negatives of dams include; an increase in the storage of sediments, less beaches, presence of jams in tributaries, reduced temperatures in water that is downstream and sedimentation.
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