Why do many environmental groups oppose building more hydroelectric dams when these dams produce virtually no chemical pollutants as they create electric power?
A)Because they increase the rate of evaporation, hence more fresh water is lost.
B)Because these dams are very expensive to build.
C)Environmental groups tend to reject all new technological advancements.
D)Dams can radically alter ecosystems.

Question

Quizplus · Accepted Answer

Building dams can have significant ecological impacts, including altering water flow and sediment movement, disrupting fish habitats, and affecting downstream ecosystems. In addition, the creation of large reservoirs can lead to significant methane emissions, which could contribute to climate change. While hydroelectric power generation itself is a relatively low-carbon form of energy, the environmental impacts of building dams can outweigh these benefits.

Why Do Many Environmental Groups Oppose Building More Hydroelectric Dams