A well watered potted herbaceous plant shows wilting in the afternoon of a dry sunny day. Give reason.

Explanation

### Step-by-Step Solution:

1. **Understanding the Plant Condition**: The question states that a well-watered potted herbaceous plant is wilting in the afternoon of a dry sunny day.

2. **Identifying the Process of Transpiration**: Transpiration is the process through which water is lost from the plant in the form of water vapor. This occurs primarily through small openings in the leaves called stomata.

3. **Role of Stomata**: Stomata are responsible for gas exchange in plants. Under dry conditions, these stomata remain open to facilitate gas exchange, particularly to allow for the uptake of carbon dioxide necessary for photosynthesis.

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