A) Afforestation
B) Terrace cultivation
C) Contour ploughing
D) All of these
Correct Answer: D
Solution :
Contour ploughing and terrace farming can help checking soil erosion on hill slopes (Geography, Surender Singh, TMH). Contour ploughing is the farming practice of ploughing and/or planting across a slope in a way to create a water break which reduces the formation of rills and gullies, a major cause of soil erosion. A terrace is an embankment of ridge of earth constructed across the slope to control run off and to minimize soil erosion
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