Which of the following is not a natural resource?

Options

A. water
B. minirals
C. soil
D. Rayon

Explanation

To determine which of the following options is not a natural resource, we will analyze each option provided:

1. **Understanding Natural Resources**:
- Natural resources are materials or substances that occur in nature and can be used for economic gain or to support life. Examples include water, minerals, and soil.

2. **Evaluating the Options**:
- **Option 1: Water**:
- Water is a fundamental natural resource essential for all forms of life. It is found in rivers, lakes, and oceans.
- Conclusion: Water is a natural resource.

- **Option 2: Minerals**:
- Minerals are naturally occurring substances that are mined from the earth. They include elements like calcium, phosphorus, and iron, which are vital for various biological processes.
- Conclusion: Minerals are natural resources.

- **Option 3: Soil**:
- Soil is the upper layer of the earth where plants grow. It is composed of organic matter, minerals, gases, liquids, and organisms. It is crucial for agriculture and supports ecosystems.
- Conclusion: Soil is a natural resource.

- **Option 4: Rayon**:
- Rayon is a synthetic fiber made from regenerated cellulose. It is produced through industrial processes and is not found in nature.
- Conclusion: Rayon is not a natural resource; it is a man-made or artificial resource.

3. **Final Answer**:
- Among the options provided, the one that is not a natural resource is **Rayon**.