関連ワード:
how might building a dam affect a river how would building a dam affect a river how might building a dam or water treatment plant affect a river how might building a dam across a river affect the freshwater ecosystem how would building a dam or water treatment plants affect a river how can building a dam on a river affect the population of decomposers downstream how would creating a dam on a river affect the ecosystem how might building a dam on a river that flows to the sea affect a coastal beach how might building a dam on a river that flows to the sea affect a beach
