Water pollution


 


(i) How do men pollute water? (ii) How do farmers pollute water? (iii) How do mills and factories pollute water? (iv) What are other ways of water pollution? (v) How can we minimise water pollution? 

ANS.

Water, an important element of the human environment, is essential for human and plant life. It is next to air. Water can be polluted in many ways. First of all farmers use chemical fertilizers and insecticide in their fields to grow more food. The rain and floods wash away some of the chemicals. They get mixed with river water, canal water and pond water. Secondly mills and factories pollute water by throwing the waste materials and unsold products into the rivers and canals. Thirdly steamers, motor launches and even sail boats can pollute water by throwing oil, food waste and human waste into the rivers and canals. Moreover, unsanitary latrines in the countryside standing on the banks of the rivers and canals also pollute water. Besides the kutcha drains running into the rivers and canals cause water pollution. Clean water is safe for use and polluted water is harmful for man. Water pollution can be prevented in many ways. First of all we should make the people aware of the fact that water is next to air. It is called life. So fertilizer, chemicals and pesticide should not be allowed to mix with river water, canal water and pond water. Mills and factories should not throw the waste materials and unsold products into rivers and canals. Steamers, motor launches and even sail boats should not throw oil, food waste and human waste into the rivers and canals. Unsanitary latrines in the countryside should not be built on the banks of the rivers and canals. In fine awareness should be created in the public.