Which is not a characteristic feature of grassland?

Options

A. Extensive root system
B. High productivity
C. Periodic fire
D. Developed stratification

Answer

To determine which option is not a characteristic feature of grasslands, we can analyze each option provided:

1. **Extensive Root System**:
- Grasslands are primarily composed of grasses, which have extensive root systems. These roots help in anchoring the plants and accessing water and nutrients from deeper soil layers. Therefore, this option is a characteristic feature of grasslands.

2. **High Productivity**:
- Grasslands are known for their high productivity. This is because grasses can photosynthesize efficiently due to the lack of a dense canopy, allowing them to receive direct sunlight. Thus, this option is also a characteristic feature of grasslands.

3. **Periodic Fire**:
- Periodic fires are a natural occurrence in grasslands. They help to maintain the ecosystem by controlling tree growth and promoting the growth of grasses. Therefore, this option is a characteristic feature of grasslands as well.

4. **Developed Stratification**:
- Stratification refers to the vertical layering of vegetation. Grasslands typically do not have developed stratification because they are dominated by grasses and do not have a canopy of trees that creates distinct layers. Hence, this option is not a characteristic feature of grasslands.

**Conclusion**: The option that is not a characteristic feature of grasslands is **D) Developed Stratification**.

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