In plants and trees, water goes up high due to suction pull. Which of the following phenomena causes this suction pull?

Options

A. Transpiration
B. Photosynthesis
C. Respiration
D. Absorption

Answer

To solve the question regarding the phenomenon that causes the suction pull in plants and trees, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the phenomenon responsible for the suction pull that allows water to travel upwards in plants and trees.

2. **Identify the Options**: Although the options are not provided, we can focus on common phenomena related to water movement in plants, such as transpiration, capillarity, root pressure, and osmosis.

3. **Define Transpiration**: Transpiration is the process where water evaporates from the surface of leaves through small openings called stomata. This process is crucial for plants as it helps regulate temperature and facilitates nutrient uptake.

4. **Explain the Mechanism**: When water evaporates from the leaves, it creates a negative pressure (suction pull) in the leaf's air spaces. This negative pressure pulls more water up from the roots through the xylem vessels.

5. **Connect the Dots**: The continuous loss of water through transpiration leads to a chain reaction where more water is drawn up from the roots to replace the lost water, effectively creating a suction pull that helps water travel to the top of the tree.

6. **Conclude with the Correct Answer**: Based on the explanation, the phenomenon that causes the suction pull in plants and trees is **transpiration**.

### Final Answer:
The correct answer is **transpiration**.

---