Hydro-electricity uses the flow of water to spin turbines. While it is "Clean" because it doesn't burn fuel, building giant dams can sometimes harm "Life on Land." How?
(A) Dams make the water too salty for fish to breathe.
(B) It causes the water to turn into steam and disappear.
(C) Large areas of forests and animal homes are flooded to create the dam's reservoir.
(D) The spinning turbines make the wind blow too fast.