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Soil erosion and desertification is due ...

Soil erosion and desertification is due to human activity like

A

Overcultivation

B

Unrestricted grazing

C

Increased urbanisation

D

All of the above

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Soil Erosion and Desertification:** - Soil erosion is the process where the upper layer of soil is removed or displaced, leading to a loss of soil fertility and nutrients. - Desertification refers to the degradation of land in arid, semi-arid, and dry sub-humid areas, resulting from various factors, including climatic variations and human activities. 2. **Identifying Human Activities Contributing to Soil Erosion and Desertification:** - Human activities that contribute to soil erosion and desertification include: - **Over Cultivation:** This involves repeatedly planting the same crop without allowing the soil to recover, which depletes nutrients and leads to soil degradation. - **Unrestricted Grazing:** Allowing livestock to graze without restrictions can lead to overgrazing, which damages vegetation cover and exposes soil to erosion. - **Increased Urbanization:** Urban development often leads to land degradation through construction, pollution, and the introduction of impervious surfaces that prevent water absorption, contributing to soil erosion. 3. **Evaluating the Options:** - **Option A: Over Cultivation** - Correct. It leads to nutrient depletion and soil erosion. - **Option B: Unrestricted Grazing** - Correct. It can cause soil compaction and loss of vegetation cover. - **Option C: Increased Urbanization** - Correct. It contributes to soil degradation through pollution and land use changes. - **Option D: All of the Above** - Correct. All the mentioned activities contribute to soil erosion and desertification. 4. **Conclusion:** - Since all the options (over cultivation, unrestricted grazing, and increased urbanization) are human activities that lead to soil erosion and desertification, the correct answer is **D: All of the above**.
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