During an educational trip, a group of students visited a village having a beautiful lake. The students collected some plants samples and noticed that some villagers are washing clothes around the lake. They also observed that the dumping of waste material from houses into the lake at certain points.
After few years, the students happened to visit the same village again. They were shocked to find the green cover over the lake water which was unusable and badly stinking
Answer the following questions:
a) What is the name of green cover over lake water?
b) Why the lake water had developed bad small?
c) How this situation could have been avoided? Give your views.
d) What are the values associated with the above passage.