What is a harmful consequence of hydroelectric power use?
Responses

Dams release a lot of pollution downstream.
Dams release a lot of pollution downstream.
Dam construction leads to increased run off into waterways.
Dam construction leads to increased run off into waterways.
Water downstream of a dam has higher concentrations of nutrients than water upstream of the dam.
Water downstream of a dam has higher concentrations of nutrients than water upstream of the dam.
Water released from a dam is colder and contains less oxygen, which can harm fish downstream of a dam.