Which of these is a man made resource?

Options

A. Brass
B. Water
C. Rock
D. Soil

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks to identify which of the given options is a man-made resource.

2. **Define Man-Made Resources**: Man-made resources are those that are created or manufactured by humans, as opposed to natural resources which occur naturally in the environment.

3. **Identify the Options**: In the context provided, we have the following resources to consider:
- Brass
- Water
- Rock
- Soil

4. **Analyze Each Option**:
- **Brass**: This is an alloy made by combining copper and zinc, which is a product of human manufacturing. Therefore, it is a man-made resource.
- **Water**: This is a natural resource that exists in nature and is not created by humans.
- **Rock**: Rocks are naturally occurring materials found in the earth, making them natural resources.
- **Soil**: Soil is also a natural resource formed through natural processes.

5. **Conclusion**: Among the options provided, brass is the only man-made resource.

**Final Answer**: Brass is a man-made resource.

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