Water pollution is an alarming problem in our country. Water (a) _____ (pollute) in many ways. Most of the mills and factories (b) _____ (throw) their waste materials in the rivers. Farmers (c) _____ (use) pesticides in crops. They flow in the rain and mix with river water. Oil (d) _____ (leak) through launches and steamers. All these reasons are responsible for (e) _____ (pollute) water. We must make people aware of water pollution.