Question

The best combination for key earthen structures which

Graded bunds, Shelterbelts, and terracing are the methods for soil conservation

may be used for controlling soil erosion inside of natural agricultural watersheds located in dry 'land areas are;

A Contour bunds, farm ponds, and land smoothening/levelling

B Graded bunds, Shelterbelts, and terracing

C Bench terracing, bigger check dams, and ground water dykes

D Diversion bunds, deep reservoirs and bench terracing

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