UPSC CSE Prelims
Question 17
Contour bunding is a method of soil conservation used in
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Contour bunds run approximately along equal-elevation lines on cultivated slopes, slowing runoff and limiting soil erosion.
Option-wise Analysis:
A: Incorrect - Wrong: wind-eroded desert margins are more typically addressed with shelterbelts or dune stabilisation.
B: Incorrect - Wrong: bunds along contours are primarily designed for surface runoff on slopes, not floodplains beside streams.
C: Incorrect - Wrong: weed invasion in scrublands is not the targeted problem.
D: Correct - Correct: none of the specified settings accurately describes the main use of contour bunding.