Have capacity of absorbing water, used to replace cotton and used as a fuel is

Options

A. Marchantia
B. Riccia
C. Sphagnum
D. Funaria.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a plant that has the capacity to absorb water, can be used as a replacement for cotton, and can also be used as a fuel.

2. **Analyzing the Options**: The options provided are:
- A. Magentia
- B. Eryxia
- C. Sphagnum
- D. Pheneria

3. **Identifying Key Characteristics**:
- **Water Absorption**: We need to identify which of these plants has a known ability to absorb and retain water.
- **Cotton Replacement**: The plant should have properties that allow it to be used in place of cotton.
- **Fuel Use**: The plant should also be recognized for its use as a fuel source.

4. **Researching Sphagnum**: Sphagnum, commonly known as peat moss, is known for its exceptional ability to absorb water. It can hold large quantities of water relative to its dry weight, making it an excellent moisture regulator for plant roots.

5. **Confirming Additional Uses**: Sphagnum is not only used for its water retention properties but also serves as a natural organic soil conditioner. Furthermore, it can be processed to replace cotton in various applications and can also be used as fuel.

6. **Conclusion**: Based on the characteristics and uses discussed, the plant that fits all the criteria mentioned in the question is **C. Sphagnum**.

**Final Answer**: C. Sphagnum

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