Soil conservation means:
Correct answer: D. All of these
- A. Prevention of spread of desert
- B. To check soil erosion by wind and rains
- C. To check soil erosion by afforestation
- D. All of these
Explanation
Soil conservation aims to control erosion and prevent land degradation, including desertification. Afforestation is an important method because tree cover reduces the force of wind and rain on soil, so all three statements are related.
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