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Nutrient rich lake is :...

Nutrient rich lake is :

A

(A) Oligotrophic lake

B

(B) Eutrophic lake

C

(C) Both (1) & (2)

D

(D) None of these

Text Solution

AI Generated Solution

The correct Answer is:
To determine which type of lake is nutrient-rich, we will analyze the characteristics of different types of lakes based on their nutrient content and productivity. ### Step-by-Step Solution: 1. **Understand the Types of Lakes**: - Lakes can be categorized based on their nutrient content and productivity into oligotrophic, mesotrophic, and eutrophic lakes. 2. **Analyze Oligotrophic Lakes**: - Oligotrophic lakes are characterized by low nutrient content and low productivity. - The water in oligotrophic lakes is usually clear and has high drinking quality due to the low levels of organic matter and nutrients. - Since the nutrient content is low, these lakes do not support significant algal growth, leading to low productivity. 3. **Analyze Eutrophic Lakes**: - Eutrophic lakes, on the other hand, are rich in nutrients, particularly phosphorus and nitrogen. - The high nutrient content leads to increased algal growth and high organic matter in the water. - With increased organic matter, there is a higher demand for oxygen due to decomposition processes, leading to an increase in Biological Oxygen Demand (BOD). - Eutrophic lakes can experience a decrease in dissolved oxygen levels due to the high demand from decomposing bacteria. 4. **Conclusion**: - Since the question asks for a nutrient-rich lake, and we have established that eutrophic lakes are characterized by high nutrient levels and high productivity, the correct answer is: - **Eutrophic Lake** (Option B).
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