IS....Today, we have to face several types of pollution – air pollution, water pollution, SOIL pollution, noise pollution, etc. But the pollution that affects the LARGEST number of people is water pollution. Scientific and technological PROGRESS of the past two hundred years has made the life of the man very comfortable. The scientific revolution has generated massive employment and made millions of people happy. Due to extensive research and manufacturing of new drugs, people are enjoying a longer lifespan. Death rate has gone down significantly. Thus we FIND that the machine age has given us enough. But if we look around the environment, we know that this progress has also injected poison in our life. One such form of poison is the water pollution spread all around us today.Water pollution is one of the greatest crises facing the country. The largest source of it is the sewage water without treatment, as also water coming from pesticides-ridden fields, and chemical waste producing SMALL and big industries. Things are so serious that there is no water resources in India, which is not contaminated at all. In fact, over 80 percent of the country’s water resources have been polluted up to a large extent. There are polluted water bodies around which population lives in large numbers. Ganga and Yamuna are among India’s most polluted rivers. In fact, a major chunk of the country’s waste water is produced in cities and towns nestled on the banks of rivers.....