Which is not a renewable source-

Options

A. Forest
B. Coal
C. Water
D. Forest organism

Answer

**Step-by-Step Solution:**

1. **Understanding Renewable Resources:**
- Renewable resources are those that can be replenished or renewed naturally over time. Examples include forests, air, water, solar energy, and wind.

2. **Identifying the Options:**
- The options provided are:
- Forest
- Cold water
- Forest organisms

3. **Analyzing Each Option:**
- **Forest:** Forests can regenerate over time as trees grow back, making them a renewable resource.
- **Cold Water:** Water is also a renewable resource as it can be naturally replenished through the water cycle.
- **Forest Organisms:** Organisms in forests, such as trees, can be replanted and regrown, which also classifies them as renewable resources.

4. **Identifying the Non-Renewable Resource:**
- The question asks for a resource that is not renewable. Among the options given, coal is a common example of a non-renewable resource.
- Coal is a fossil fuel formed from the remains of ancient plants and animals that lived millions of years ago. It cannot be replenished within a human timescale.

5. **Conclusion:**
- Therefore, the correct answer to the question "Which is not a renewable source?" is **coal**.

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