In rural area, cow dung is used to coat the floor and walls of huts to make them smooth

Question

Accepted Answer

The correct answer to the question is **1. make them smooth**.

### Explanation:

In rural areas, cow dung is traditionally used for various purposes, one of which is to coat the floors and walls of huts. Here’s a detailed analysis of why option 1 is correct and why the other options are incorrect:

1. **Make them smooth**: 
   - Cow dung, when applied to surfaces, can create a smooth finish. This is because it can be spread evenly and, once dried, it hardens to form a relatively smooth surface. This smoothness is not only aesthetically pleasing but also makes cleaning easier. Additionally, a smooth surface can help in reducing dust accumulation.

2. **Make them rough for friction**: 
   - This option is incorrect because while rough surfaces can provide friction, the primary purpose of applying cow dung is not to create a rough texture. In fact, the application of cow dung is aimed at achieving a smoother finish, which is contrary to the intention of creating a rough surface.

3. **Give a natural colour to the walls and floor**: 
   - While cow dung does have a natural color that can enhance the appearance of walls and floors, this is not the primary reason for its application. The main purpose is to smooth the surfaces rather than to provide color. Thus, this option is not the best answer.

4. **Keep the insects away**: 
   - Although cow dung may have some insect-repelling properties, this is not its primary use when coating floors and walls. The main intent is to create a smooth surface for practical and aesthetic reasons. Therefore, this option is also incorrect.

### Conclusion:
In summary, the primary reason for using cow dung to coat the floors and walls of huts in rural areas is to **make them smooth**. This practice not only enhances the appearance of the huts but also serves practical purposes such as ease of cleaning and maintenance. The other options do not accurately reflect the main purpose of this traditional practice.