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Answer:
| Contour Ploughing | Contour Barriers |
| Contour farming, also known as contour ploughing is a farming technique of ploughing and planting crops across a slope that follows its elevation-contour lines. | Contour barriers refer to the contour strips that intercept downslope flowing soil particles and water. |
| The benefit of this method is that it prevents tillage erosion. | The benefit of contour barriers is that soil builds up behind them, creating a terrace effect. |
