The ability to rise in thin tubes and Ability to resist a pulling force are respectively referred to as

Options

A. Tensile strength and capillarity
B. Cohesion and adhesion
C. Capillarity and tensile strength
D. Adhesion and capillarity

Answer

To answer the question regarding the ability to rise in thin tubes and the ability to resist a pulling force, we can break down the concepts as follows:

1. **Understanding Capillarity**:
- Capillarity is the ability of a liquid to flow in narrow spaces without the assistance of external forces. This phenomenon occurs due to the cohesive forces between the liquid molecules and the adhesive forces between the liquid and the surface of the tube. In plants, capillarity helps in the movement of water and nutrients through xylem vessels.

2. **Understanding Tensile Strength**:
- Tensile strength refers to the ability of a material to withstand tension (pulling forces) without breaking. In the context of plants, this property is crucial for structures such as stems and roots, allowing them to resist the forces exerted by wind, gravity, and other environmental factors.

3. **Conclusion**:
- Therefore, the ability to rise in thin tubes is known as **capillarity**, and the ability to resist a pulling force is referred to as **tensile strength**.

**Final Answer**: The ability to rise in thin tubes is called **capillarity**, and the ability to resist a pulling force is called **tensile strength**.

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