Name two leguminous plants which can fix nitrogen.

Explanation

**Step-by-Step Solution:**

1. **Understanding Leguminous Plants**: Leguminous plants are a category of plants that have the ability to fix nitrogen from the atmosphere. This is due to the presence of special bacteria in their root nodules.

2. **Role of Bacteria**: The bacteria, primarily from the genus Rhizobium, live in the root nodules of these plants. They play a crucial role in converting atmospheric nitrogen into a soluble form that plants can absorb.

3. **Importance of Nitrogen Fixation**: Nitrogen is an essential nutrient for plants, and these leguminous plants help in replenishing the nitrogen content in the soil, making it more fertile.

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