Q. Which of the following is/are methods of checking soil erosion?
1. Strip cropping
2. Contour ploughing
3. Use of irrigation and fertilisers
4. Terrace farming
1. Strip cropping
2. Contour ploughing
3. Use of irrigation and fertilisers
4. Terrace farming
β
Correct Answer: (D)
1, 2, 3 and 4
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