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

Options

A. Endosmosis
B. Imbibition
C. Capillarity
D. Exosmosis

Answer

**Step-by-Step Solution:**

1. **Understanding the Problem**: The question asks why wooden doors swell up and get stuck during the rainy season. This phenomenon is commonly observed and can be explained through biological processes.

2. **Identifying the Options**: The options provided are:
- A) Endosmosis
- B) Imbibation
- C) Capillarity
- D) Exosmosis

3. **Analyzing the Options**:
- **Endosmosis**: This refers to the movement of water into a cell, causing it to swell. While it involves water absorption, it is not the primary reason for the swelling of wooden doors.
- **Imbibation**: This is the process by which a substance absorbs water and swells. Wood has the property of imbibition, which means it can absorb moisture from the environment, leading to swelling.
- **Capillarity**: This refers to the ability of a liquid to flow in narrow spaces without the assistance of external forces. While it is related to water movement, it does not directly explain the swelling of wood.
- **Exosmosis**: This is the process of water moving out of a cell. This is not relevant to the swelling of wooden doors.

4. **Conclusion**: Since wooden doors swell due to their ability to absorb water from the environment during the rainy season, the correct answer is **B) Imbibation**.

5. **Final Answer**: Wooden doors swell up and get stuck during the rainy season due to **imbibation**.

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