Which of the following is the largest disadvantage of hydropower?
A : Dams negatively impact the environment.
B : Dams release harmful chemicals and toxins.
C : Hydropower depends on time of day.
D : Hydropower is a nonrenewable resource.
The answer is A. Dams negatively impact the environment .. The reason for this is that when the dams are build then the surrounding area having many number of trees get submerged under water ..