To determine which pair is mismatched with respect to the type of vegetation, we will analyze each option one by one.
### Step-by-Step Solution:
1. **Identify the First Option: Savanna with Acacia Trees**
- Savanna is characterized by a warm climate, scattered shrubs, and trees.
- It experiences seasonal rainfall with wet and dry periods, and common trees include Acacia, Butea, Prosopis, Ziziphus, and Caparis.
- Since Acacia trees are indeed found in savanna regions, this pair is **correct**.
2. **Identify the Second Option: Prairies**
- Prairies are grasslands primarily found in the USA, characterized by hot summers and cold winters.
- They receive seasonal rainfall (25 to 75 cm) and do not support epiphytes.
- The mention of epiphytes in relation to prairies is incorrect as they do not occur in this type of vegetation.
- Therefore, this pair is **mismatched**.
3. **Identify the Third Option: Tundra with Permafrost**
- Tundra regions are known for their permanently frozen upper soil layer, known as permafrost.
- They receive very little precipitation, mostly in the form of snow.
- This description aligns with the characteristics of tundra, making this pair **correct**.
4. **Identify the Fourth Option: Coniferous Forests**
- Coniferous forests, such as those found in the Himalayas, have needle-shaped leaves and a cone-shaped canopy.
- Common trees include Pinus, Cedrus, Picea, and Abies.
- This description is accurate for coniferous forests, thus this pair is also **correct**.
### Conclusion:
Based on the analysis, the only mismatched pair is the **second option: Prairies** which incorrectly states the presence of epiphytes.
