A lake receiving nutrients would be

Options

A. Oligotrophic
B. Eutrophic
C. Sink
D. Rich in fossils

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what type of lake receives nutrients. The options provided are oligotrophic, eutrophic, sink, and rich in fossils.

2. **Defining Oligotrophic Lakes**: Oligotrophic lakes are characterized by low nutrient content and low primary productivity. They typically have clear waters and support fewer algae and aquatic plants.

3. **Defining Eutrophic Lakes**: Eutrophic lakes are rich in nutrients, particularly nitrogen and phosphorus, which promote high levels of primary productivity. This often leads to algal blooms and increased biological activity.

4. **Analyzing the Nutrient Input**: The question specifies that the lake is receiving nutrients. This indicates that the lake is not oligotrophic, as oligotrophic lakes have low nutrient levels.

5. **Evaluating Other Options**:
- **Sink**: A sink lake is one that has no outlet, leading to the accumulation of salts and solutes. This does not relate to nutrient enrichment.
- **Rich in Fossils**: This option does not pertain to nutrient levels in a lake.

6. **Conclusion**: Since the lake is receiving nutrients, it aligns with the definition of a eutrophic lake. Therefore, the correct answer is eutrophic.

**Final Answer**: A lake receiving nutrients would be **eutrophic**.

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