Which soil conservation practice involves ploughing and planting crops across the slope along lines of equal elevation?
Answer and explanation
Correct answer: C. Contour ploughing
- Step 1: Contour ploughing creates ridges across the slope rather than up and down the hill. Step 2. These ridges act as small dams that catch surface runoff, reducing soil erosion and encouraging water infiltration. Answer: Contour ploughing. Why not the others: Bush burning destroys organic matter; clean clearing exposes soil to rain impact; overgrazing removes protective vegetative cover.
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