Eutrophication refers to:

Options

A. High production in an aquatic ecosystem
B. Low production in an aquatic ecosystem
C. Low production in a terrestrial
D. Stable production in a terrestrial ecosystem

Answer

**Step-by-Step Text Solution:**

1. **Understanding Eutrophication**:
- Eutrophication is a process that occurs in aquatic ecosystems, particularly in lakes and ponds. It involves the enrichment of water bodies with nutrients, primarily phosphorus and nitrogen.

2. **Nutrient Accumulation**:
- The accumulation of these nutrients leads to an increase in the growth of microorganisms and aquatic plants. This is because these nutrients serve as fertilizers, promoting the growth of algae and other aquatic organisms.

3. **Impact on Aquatic Ecosystem**:
- As the nutrient levels rise, the productivity of the aquatic ecosystem increases significantly. This results in a phenomenon known as algal blooms, where there is a rapid increase in the population of algae.

4. **Analyzing the Options**:
- Now, let's evaluate the options provided:
- **A. High production in an aquatic ecosystem**: This is correct because eutrophication leads to increased productivity due to nutrient enrichment.
- **B. Low production in an aquatic ecosystem**: This is incorrect as eutrophication causes high production, not low.
- **C. Low production in a terrestrial ecosystem**: This is also incorrect as it refers to a different ecosystem and does not relate to eutrophication.
- **D. Stable production in a terrestrial ecosystem**: This is not relevant to eutrophication, which specifically pertains to aquatic systems.

5. **Conclusion**:
- Based on the analysis, the correct answer is **A. High production in an aquatic ecosystem**.

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