Besides dung ,the weed that can be used in biogas production is

Options

A. Hydrilla
B. Solanum nigrum
C. Eichhornia crassipes
D. Parthenium hysterophorus

Answer

### Step-by-Step Solution:

1. **Understanding Biogas**:
- Biogas is a type of biofuel produced from the decomposition of organic waste in an anaerobic environment. It primarily consists of methane and carbon dioxide.

2. **Sources of Biogas**:
- Common sources of organic waste for biogas production include food scraps and animal waste, such as dung.

3. **Identifying Alternative Materials**:
- Besides dung, other organic materials can also be used for biogas production. One such alternative is certain types of weeds.

4. **Specific Weed for Biogas Production**:
- The specific weed that can be used in biogas production is **water hyacinth**.

5. **Scientific Name**:
- The scientific name of water hyacinth is **Icornea crassipes**.

6. **Why Water Hyacinth?**:
- Water hyacinth is beneficial for biogas production because it contains high levels of cellulose, nitrogen, and essential nutrients, which are conducive to fermentation.

7. **Conclusion**:
- Therefore, besides dung, water hyacinth (Icornea crassipes) can be utilized for biogas production.