One of the following is not a supporting ecosystem services

Options

A. Nutrient cycling
B. Oxygen production
C. Soil formation
D. Climate regulation

Answer

To determine which of the following options is not a supporting ecosystem service, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Ecosystem Services**: Ecosystem services are benefits that humans derive from ecosystems. They are generally categorized into four main types: provisioning, regulating, cultural, and supporting services.

2. **Identify Supporting Services**: Supporting ecosystem services are those that are necessary for the production of all other ecosystem services. They include processes such as nutrient cycling, soil formation, and oxygen production.

3. **Analyze the Options**: The options provided are:
- Nutrient cycling
- Oxygen production
- Soil formation
- Climate regulation

4. **Classify Each Option**:
- **Nutrient cycling**: This is a supporting service as it is essential for the growth of plants and overall ecosystem health.
- **Oxygen production**: This is also a supporting service, primarily through photosynthesis in plants.
- **Soil formation**: This is another supporting service, as it is crucial for plant growth and ecosystem stability.
- **Climate regulation**: This is not a supporting service; it falls under the category of regulating services, which manage ecosystem processes.

5. **Conclusion**: Based on the classification, the option that is not a supporting ecosystem service is **climate regulation**.

### Final Answer:
**Climate regulation** is not a supporting ecosystem service.

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