(a) desert margins, liable to strong wind action
(b) low flat plains, close to stream courses, liable to flooding
(c) scrublands, liable to spread of weed growth
(d) None of the above
Answer: (d) Option (d) is correct:
Contour bunding is a proven sustainable land management practice for marginal, sloping, and hilly land where the soil productivity is very low. It can be adopted in light and medium-textured soils. It can be laid up to 6% slopes. It helps to retain moisture in the field. It has a high probability of replication because it is simple to implement, is low cost, and makes maximum use of local resources.