Adisadvantage of using hydroelectricity is select one it is nonrenewable it is a nonrenewable resource it can disturb natural ecosystems it causes air pollution

It impacts aquatic ecosystems and can damage the habitats of aquatic animals by blocking off their food sources with dams and the dams can interfere with mating patterns, hydroelectricity also can damage the flora and fauna by floods drowning and killing various animals and plant life and it can lead to the emissions of greenhouse gasses causing air pollution. I hope this helps.