Where furrows caused by ploughing follow the contours of the land?

Where furrows caused by ploughing follow the contours of the land?

• A. Terrace farming
• B. Contour ploughing
• C. Row cropping
• D. Bed farming

Answer: (B)

Contouring furrows helps prevent soil erosion on slopes by following the land’s natural contour lines. When furrows run along these lines, water moving downhill is slowed and spread across the field, giving it more time to infiltrate the soil rather than wash it away. This reduces soil loss and helps retain moisture, which is especially important on hilly ground. Other methods alter the landscape rather than guiding furrows along contours: terrace farming creates flat steps on a hill, which lowers runoff but isn’t about furrows that follow contour lines; row cropping often uses straight rows that may not align with contours, offering less erosion control on slopes; bed farming uses raised beds for drainage and cultivation, not contour-following furrows.

Contouring furrows helps prevent soil erosion on slopes by following the land’s natural contour lines. When furrows run along these lines, water moving downhill is slowed and spread across the field, giving it more time to infiltrate the soil rather than wash it away. This reduces soil loss and helps retain moisture, which is especially important on hilly ground.

Other methods alter the landscape rather than guiding furrows along contours: terrace farming creates flat steps on a hill, which lowers runoff but isn’t about furrows that follow contour lines; row cropping often uses straight rows that may not align with contours, offering less erosion control on slopes; bed farming uses raised beds for drainage and cultivation, not contour-following furrows.