wood with specific gravity of less than 0.2 is

Options

A. bombax
B. populus
C. ochroma
D. Olea.

Answer

To determine which type of wood has a specific gravity of less than 0.2, we can analyze the specific gravities of the given options: Bombax, Populus, Okroma, and Olea.

### Step-by-Step Solution:

1. **Understand Specific Gravity**: Specific gravity is a measure of the density of a substance compared to the density of water. A specific gravity of less than 0.2 indicates that the wood is very lightweight.

2. **Evaluate Bombax**:
- The specific gravity of Bombax is approximately 0.33.
- Since 0.33 is greater than 0.2, Bombax does not meet the criteria.

3. **Evaluate Populus**:
- The specific gravity of Populus ranges from 0.40 to 0.48.
- Both values are greater than 0.2, so Populus is also not the correct answer.

4. **Evaluate Okroma**:
- Okroma has a specific gravity that is less than 0.2.
- This means Okroma meets the criteria for being the wood with a specific gravity of less than 0.2.

5. **Evaluate Olea**:
- Olea has a specific gravity of 1.49, which is significantly higher than 0.2.
- Therefore, Olea is not the correct answer.

6. **Conclusion**:
- Based on the evaluations, the wood with a specific gravity of less than 0.2 is **Okroma**.

### Final Answer:
The wood with a specific gravity of less than 0.2 is **Okroma**.

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