Which of the following is not an impact associated with the use of hydroelectric energy? a. release of contaminants b. interruption of natural water flow c. increase of riverbed erosion d. disruption of aquatic wildlife select the best answer from the choices provided a b c d

Option A, release of contaminants

Explanation:

Hydroelectric energy is harnessed from water by constructing dam and other engineering structures to store water and then allowing it to fall from great heights which in turn rotate the turbines to generate electricity . The huge amount of water stored in dams come from natural flowing rivers or streams. When flowing river is diverted from its original path of flow or is made to slow down for water storage, huge friction occurs at its bed and side slopes which causes erosion . The natural navigation process of the fish/other aquatic animals in it also gets affected.  There is no release of contaminants as hydroelectric energy  is a clean and sustainable source of energy.

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