Cohesion-tension-transpiration pull model explain that water is mainly 'pulled' through the plant.

Answer

### Step-by-Step Solution:

1. **Understanding the Cohesion-Tension Theory**:
- The cohesion-tension theory explains how water moves through plants, particularly in the xylem vessels. It is based on two main principles: cohesion and tension.

2. **Cohesion**:
- Cohesion refers to the attraction between water molecules. This property allows water molecules to stick together, forming a continuous column of water within the xylem vessels.

3. **Transpiration**:
- Transpiration is the process through which water evaporates from the surface of leaves, primarily through small openings called stomata. This loss of water creates a negative pressure (tension) in the leaf.

4. **Tension**:
- The negative pressure created by transpiration pulls water upward from the roots through the xylem. As water evaporates from the leaves, it pulls more water up from below due to the cohesive properties of water.

5. **Water Movement**:
- The combination of cohesion (water molecules sticking together) and tension (negative pressure created by transpiration) allows water to be pulled from the roots to the leaves, effectively moving it against gravity.

6. **Conclusion**:
- Therefore, the statement that the cohesion-tension-transpiration pull model explains that water is mainly 'pulled' through the plant is true. The model accurately describes the mechanism of water transport in plants.