Velamen takes part in

Options

A. Absorption of mositure from air
B. Absorption of water from soil
C. Exchanges of gases
D. Transpiration

Answer

### Step-by-Step Solution:

1. **Understanding Velamen**: Velamen is a specialized tissue found in the roots of certain epiphytic plants. These plants grow on other trees and do not derive nutrients from the soil directly.

2. **Identifying Epiphytes**: Epiphytes are plants that grow on other plants (like trees) but are not parasitic. They obtain moisture and nutrients from the air, rain, and debris that collects around them.

3. **Function of Velamen**: The primary function of velamen is to absorb moisture from the air. This is crucial for epiphytic plants since their roots are often exposed to the atmosphere rather than being buried in soil.

4. **Characteristics of Velamen**: Velamen tissue is spongy in nature, which aids in the absorption of moisture. This characteristic allows it to efficiently capture water vapor from the air.

5. **Conclusion**: Therefore, the correct answer to the question "Velamen takes part in" is that it participates in the absorption of moisture from the air.

### Final Answer:
**Velamen takes part in the absorption of moisture from the air.**