An adaptation of plants to water scarcity and high temperature is

Options

A. Succulent stem stores water
B. Poorly developed root
C. They shed their leaves
D. In unfavourable season, plants survive in dormant state as seeds

Answer

**Step-by-Step Solution:**

1. **Identify the Environment**: The question asks about adaptations of plants to water scarcity and high temperatures. This typically refers to plants that grow in arid or desert-like conditions.

2. **Understand Plant Adaptations**: Plants in such environments have developed specific adaptations to survive. These adaptations can include changes in their structure and function to minimize water loss and maximize water storage.

3. **Consider the Types of Adaptations**:
- **Sunken Stomata**: This adaptation helps reduce water loss by minimizing the exposure of stomata to air.
- **Reduced Leaf Surface Area**: Leaves may be modified into spines to reduce transpiration.
- **Succulent Stems**: Stems can become thick and fleshy to store water, which is crucial for survival during dry periods.
- **Well-Developed Root Systems**: Roots may extend deep into the soil to access water.

4. **Evaluate the Options**: From the adaptations mentioned, the most significant adaptation for water storage and survival in high temperatures is the presence of **succulent stems**. These stems can store water, allowing the plant to survive during periods of drought.

5. **Eliminate Incorrect Options**:
- **Well-developed root system**: While important, it does not directly address the question about adaptations to water scarcity and high temperature in terms of water storage.
- **Shedding leaves**: This is not applicable here as the leaves are already adapted to be spines.
- **Dormant state as seeds**: This is not a continuous adaptation but rather a survival strategy during extreme conditions.

6. **Conclusion**: The correct answer to the question is that an adaptation of plants to water scarcity and high temperature is **succulent stems**.

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