Absorption of water by plants is enhanced by

Options

A. Increasing photosynthesis
B. Increasing transpiration
C. Decreasing transpiration
D. Decreasing salt uptake

Answer

To solve the question regarding the enhancement of water absorption by plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Process of Water Absorption in Plants**:
- Water absorption in plants primarily occurs through the roots. The absorbed water then travels through the plant via the xylem.

2. **Identify the Role of Transpiration**:
- Transpiration is the process where water evaporates from the aerial parts of the plant, mainly through the stomata in leaves. This loss of water creates a negative pressure (transpiration pull) that helps draw more water up from the roots through the xylem.

3. **Analyze the Options Given**:
- **Increasing Photosynthesis**: While photosynthesis is crucial for plant growth, it does not directly enhance water absorption.
- **Increasing Transpiration**: This option is correct. An increase in transpiration leads to a stronger transpiration pull, which enhances water absorption.
- **Decreasing Transpiration**: This would reduce the transpiration pull, leading to decreased water absorption, making this option incorrect.
- **Decreasing Salt Uptake**: While salt uptake can affect water absorption, decreasing it does not directly enhance the process of water absorption.

4. **Conclusion**:
- The option that enhances water absorption in plants is **increasing transpiration**.

### Final Answer:
The correct answer is **B: Increasing Transpiration**.

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