In which of the following plants, there will be no transpiration?

Options

A. Aquatic, submerged plants
B. Plants living in deserts
C. Aquatic plants with floating leaves
D. Plants growing in willy regions

Answer

### Step-by-Step Solution:

1. **Understanding Transpiration**: Transpiration is the process by which water vapor is lost from the aerial parts of plants, primarily through small openings called stomata. It is crucial for regulating water and nutrient transport within the plant.

2. **Identifying Conditions for No Transpiration**: For a plant to have no transpiration, it must have non-functional stomata. This typically occurs in conditions where there is an abundance of water, such as in submerged aquatic plants.

3. **Analyzing Different Plant Types**:
- **Aquatic Plants**: These plants live in water. If they are submerged (completely underwater), they do not lose water through transpiration because there is no dry air around them to facilitate this process.
- **Desert Plants**: These plants are adapted to high temperatures and low humidity, leading to maximum transpiration due to the need to cool down and transport nutrients.
- **Aquatic Plants with Floated Leaves**: These plants have parts above the water surface and can lose water through transpiration because they are exposed to sunlight and air.
- **Plants in Hilly Regions**: These plants are also exposed to sunlight and can transpire, especially if they have access to water.

4. **Conclusion**: The only plants that will not undergo transpiration are those that are submerged in water. Therefore, the answer to the question is **submerged aquatic plants**.