During an educational trip, a student of botany saw a beautiful lake in a village. She collected many plants from that area. She noticed that villagers were washing clothes around the lake and at some places waste material from houses was destroying its beauty.

After a few years, she visited the same lake again. She was surprised to find that the lake was covered with algae, the stinking smell was coming out and its water had become unusable. Can you explain the reason for this condition of the lake?

Answers (1)

The condition of the lake as a result of the process of eutrophication. We know that domestic waste and organic compounds like detergents enhance the growth of algae & aquatic plants in water. They are decomposed by bacteria and produce an unpleasant odour.

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