Soil erosion can be prevented by

Options

A. Terrace farming
B. Intensive cropping
C. Deforestation
D. Both A and B

Answer

**Step-by-Step Solution:**

1. **Understanding Soil Erosion**: Soil erosion is the process by which the top layer of soil is removed due to various factors such as water, wind, and human activities. It can lead to loss of soil fertility and degradation of land.

2. **Identifying Methods to Prevent Soil Erosion**: There are several methods to prevent soil erosion, including:
- **Terrace Farming**: This method involves creating steps on slopes to slow down water runoff and reduce soil erosion. It helps in retaining water and soil on the land.
- **Incentive Cropping**: This refers to planting crops in a way that encourages soil stability. Cover crops can be planted to protect the soil during off-seasons, which helps in preventing erosion.

3. **Evaluating the Options**:
- **Option A (Terrace Farming)**: This is a correct method to prevent soil erosion.
- **Option B (Incentive Cropping)**: This is also a correct method to prevent soil erosion.
- **Option C (Deforestation)**: This is incorrect because deforestation leads to increased soil erosion as there are fewer plants to hold the soil in place.

4. **Conclusion**: The correct methods to prevent soil erosion are both terrace farming and incentive cropping. Therefore, the answer to the question is that soil erosion can be prevented by both A (Terrace Farming) and B (Incentive Cropping).

**Final Answer**: Soil erosion can be prevented by terrace farming and incentive cropping.

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