Cotton and Madar (Calotropis) seeds are dispersed by air they have

Options

A. Pappus
B. Wings
C. Hair
D. Flattened surface

Answer

**Step-by-Step Solution:**

1. **Understanding Seed Dispersal**: Seeds can be dispersed through various means, including wind, water, animals, and gravity. In this question, we are specifically looking at seeds that are dispersed by air.

2. **Identifying Characteristics of Wind-Dispersed Seeds**: Seeds that are dispersed by wind are typically small and lightweight, which allows them to be carried easily by air currents.

3. **Analyzing the Options**: The options provided are:
- Papus
- Wings
- Hair
- Flattened surface

4. **Focusing on Cotton and Madar (Calotropis)**: Both cotton and Madar seeds are known for their ability to be dispersed by wind.

5. **Identifying the Correct Structure**: Upon examining the characteristics of cotton and Madar seeds, it is noted that they possess hairy structures. These hairs (or tufts) increase the surface area of the seeds, allowing them to be carried by the wind effectively.

6. **Conclusion**: Therefore, the correct answer to the question is that cotton and Madar seeds have "hair" which aids in their dispersal by air.

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