Dialogue between two friends about water pollution

Shahin	Isn’t it very alarming [উদ্বেগ জনক] that the water of our canals, rivers and tanks is getting polluted [দূষিত] day by day?
Abir	Yes. This polluted water causes much harm to us.
Shahin	But man is mainly responsible for water pollution. They pollute water by throwing waste into it.
Abir	Farmers use chemical fertilizer and insecticides [কীট নাশক] in their fields. Rain and floods wash away some of the chemicals. They get mixed with her water of canals. Ponds and rivers and pollute water.
Shahin	Mills and factories also pollute water by the waste materials [উপাদান].
Abir	How can we stop water from being polluted?
Shahin	Water pollution can be prevented [নিবারণ] in many ways. But the main way is to make the people aware [সচেতন] of the importance of pure [বিশুদ্ধ] water.
Abir	Thank you for this important discussion.
Shahin	You’re most welcome. Bye.