Reservoirs and dams make it possible to store fresh water for people to use. What is one way reservoirs and dams can be harmful?
A Extra nutrients may be produced making it difficult for plants downstream to survive.
B If too much water is pumped out of aquifers the groundwater may dry up.
C They cause changes in natural habitats for plants and animals that may affect their survival.
D Droughts may occur when there is no rain or snow for a long time creating a water shortage.
The correct answer is C: They cause changes in natural habitats for plants and animals that may affect their survival.
Explanation: Reservoirs and dams can significantly alter the ecosystems surrounding them. When a dam is built, it can flood areas that were previously terrestrial habitats, displacing flora and fauna. Additionally, changes in water levels and flow can disrupt the natural processes that many species rely on, potentially leading to declines in their populations or even extinction. This highlights the environmental impact dams and reservoirs can have on local ecosystems. If you have more questions or need further assistance, feel free to ask!