Rivers generally aoriginate from a mountain or a lake. They bbe very much important for our existence and economy. But unfortunately we are ckill our rivers by throwing industrial and domestic wastes. Most of the industries dhave waste treatment plants. These kinds of industries are erelease liquid wastes directly and continuously fpollute the water. Our unconscious people also gthrow different kinds of waste materials into rivers. So, to keep the existence of fishes and other species hlive in the water is impossible. It is high time the government and the people iwork together to save the rivers. Otherwise a happy, prosperous and pollution free environment can't be jensure for the next generation.