Eutrophication is found in

Options

A. Agricultural land near thermal plant
B. Saline soil
C. Lake
D. Mountain

Answer

### Step-by-Step Solution:

1. **Understanding Eutrophication**:
- Eutrophication is a process that occurs in aquatic environments, particularly in lakes and other water bodies. It is characterized by the enrichment of water with nutrients, which can lead to excessive growth of algae and other aquatic plants.

2. **Natural Aging of Lakes**:
- Eutrophication can be a natural process that occurs over thousands to millions of years as lakes age. This process is influenced by various factors including the climate, size of the lake, and surrounding environmental conditions.

3. **Anthropogenic Factors**:
- Human activities, such as the excessive use of fertilizers in agriculture, can accelerate eutrophication. When rainwater or runoff carries these nutrients into lakes, it can lead to a rapid increase in plant and algae growth.

4. **Consequences of Eutrophication**:
- The increase in nutrients leads to a rise in biodiversity and fertility of the lake. However, as organic matter accumulates and decays, it can deplete oxygen levels in the water, ultimately resulting in the death of aquatic life and the lake itself.

5. **Identifying the Correct Environment**:
- Eutrophication is specifically associated with aquatic environments, particularly lakes, and not with terrestrial (land) environments.

6. **Conclusion**:
- Based on the understanding of eutrophication and its association with water bodies, the correct answer to the question "Eutrophication is found in" is **lakes**.

### Final Answer:
Eutrophication is found in **lakes**.

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