Large scale diurnal variation in surface temperature occurs in

Options

A. Sea
B. Lake
C. Tundra
D. Desert

Answer

**Step-by-Step Solution:**

1. **Understanding Diurnal Variation**:
- Diurnal variation refers to the fluctuations in temperature that occur during a 24-hour cycle, specifically between day and night. This means that there are significant differences in temperature from day to night.

2. **Identifying the Context**:
- The question asks about large-scale diurnal variation in surface temperature. This implies we are looking for environments where the temperature changes significantly between day and night.

3. **Analyzing the Options**:
- The options provided are sea, lake, tundra, and desert. We need to evaluate which of these environments is likely to experience the greatest diurnal temperature variation.

4. **Evaluating Each Option**:
- **Sea**: Generally, seas have a moderating effect on temperature due to the high specific heat of water, leading to less variation between day and night.
- **Lake**: Similar to seas, lakes also have a moderating effect on temperature, resulting in smaller diurnal variations.
- **Tundra**: While tundra regions can have temperature variations, they are not as extreme as those found in deserts.
- **Desert**: Deserts are characterized by low moisture and high temperatures during the day, which can drop significantly at night due to the lack of cloud cover and moisture to retain heat.

5. **Conclusion**:
- Based on the analysis, deserts experience the largest diurnal variation in surface temperature due to their unique climatic conditions. Therefore, the answer is that large-scale diurnal variation in surface temperature occurs in **desert**.

**Final Answer**: Large-scale diurnal variation in surface temperature occurs in **desert**.

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