Which soil conservation technique involves planting crops across a slope following its elevation lines rather than up and down the hill?

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A Windbreaks
B Contour ploughing
C Monoculture
D Overgrazing

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Answer: B. Contour ploughing

Answer Explanation: B. Contour ploughing creates horizontal ridges across a slope. These ridges slow down water runoff during heavy rainfall, preventing valuable topsoil from being washed away.

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Which soil conservation technique involves planting crops across a slope following its elevation lines rather than up and down the hill?

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