The fresh River turn to The black water

Last time I was talking about the Environment about the rubbish was everywhere in our country,but now I'm going to talk about the Water Pollution.
It also a part of the Environment too,and it kind of important one too.Nowadays some people live in the country or country side still did not think about their country.Water Pollution is very important because it one of environment that can keep your country clean , fresh , especially no stinky smell.Some people did not know about keeping country they just like a big plastic bag of rubbish and something else like stink into the river and that can make the water turn black and it also turn to a terrible place and after when it turn to a terrible smelly place nobody want to go there again.The big terrible thing for fish is they gonna have no more place to live because make their place turn to a stinky smelly black river,if it serious all of the fishes can die cause they can live in the black water with awful smell and maybe some of them move to other for their life,and then all of the fish seller will have no more career and when they don't have career they can't raise their kid for good.So i think that everybody should take care of our country for everybody.