Wooden doors swell up and get stuck during rainy season due to

Options

A. imbibition
B. endosmosis
C. capillarity
D. deplasmolysis

Explanation

To solve the question "Wooden doors swell up and get stuck during rainy season due to:", we need to analyze the options provided and identify the correct process that explains the swelling of wooden doors when exposed to moisture.

### Step-by-Step Solution:

1. **Understanding the Problem**: Wooden doors are made of wood, which is a hygroscopic material. This means that wood can absorb moisture from the environment. During the rainy season, the humidity in the air increases, leading to the absorption of water by the wooden doors.

**Hint**: Consider how materials interact with water and what happens to their structure when they absorb moisture.

2. **Analyzing the Options**:
- **Option 1: Imbibition**: This is the process by which a solid absorbs liquid without forming a solution. In the case of wooden doors, the wood absorbs water from the air, causing it to swell.

**Hint**: Think about how solids can absorb liquids and what that means for their size and shape.

- **Option 2: Endosmosis**: This refers to the movement of water into cells when they are placed in a hypotonic solution. This process is related to cellular biology rather than the swelling of wooden structures.

**Hint**: Consider whether the question pertains to cellular processes or to the properties of materials like wood.

- **Option 3: Capillarity**: This is the ability of a liquid to flow in narrow spaces without the assistance of external forces. While capillarity can play a role in how water moves through porous materials, it does not directly explain the swelling of wooden doors.

**Hint**: Reflect on whether the movement of water through small spaces is the main reason for the swelling of the doors.

- **Option 4: Deplasmolysis**: This is the process of a cell swelling when it gains water in a hypotonic solution. This term is specific to cellular biology and does not apply to wooden doors.

**Hint**: Think about whether this term relates to the swelling of non-living materials like wood.

3. **Conclusion**: After analyzing all the options, it is clear that the correct answer is **Imbibition**. The wooden doors swell up and get stuck during the rainy season due to the absorption of water through the process of imbibition.

**Final Answer**: Imbibition